Home / 910,672.20-1,366,008.30-438,280.20

Finding the Fourth Proportional to 910,672.20, 1,366,008.30 and 438,280.20

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Solution

The fourth proportional to 910,672.20, 1,366,008.30 and 438,280.20 is: 657,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,672.20 : 1,366,008.30 = 438,280.20 : x
  2. Step 2: Convert to fraction form
    910,672.20/1,366,008.30 = 438,280.20/x
  3. Step 3: Cross multiply
    910,672.20x = 1,366,008.30 × 438,280.20
  4. Step 4: Simplify right side
    910,672.20x = 598,694,390,925.66
  5. Step 5: Solve for x
    x = 598,694,390,925.66/910,672.20
  6. Step 6: Final answer
    x = 657,420.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.