Home / 910,438.20-1,365,657.30-438,046.20

Finding the Fourth Proportional to 910,438.20, 1,365,657.30 and 438,046.20

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Solution

The fourth proportional to 910,438.20, 1,365,657.30 and 438,046.20 is: 657,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,438.20 : 1,365,657.30 = 438,046.20 : x
  2. Step 2: Convert to fraction form
    910,438.20/1,365,657.30 = 438,046.20/x
  3. Step 3: Cross multiply
    910,438.20x = 1,365,657.30 × 438,046.20
  4. Step 4: Simplify right side
    910,438.20x = 598,220,990,767.26
  5. Step 5: Solve for x
    x = 598,220,990,767.26/910,438.20
  6. Step 6: Final answer
    x = 657,069.30

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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.