Home / 747,810.30-1,121,715.45-304,578.30

Finding the Fourth Proportional to 747,810.30, 1,121,715.45 and 304,578.30

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Solution

The fourth proportional to 747,810.30, 1,121,715.45 and 304,578.30 is: 456,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,810.30 : 1,121,715.45 = 304,578.30 : x
  2. Step 2: Convert to fraction form
    747,810.30/1,121,715.45 = 304,578.30/x
  3. Step 3: Cross multiply
    747,810.30x = 1,121,715.45 × 304,578.30
  4. Step 4: Simplify right side
    747,810.30x = 341,650,184,844.74
  5. Step 5: Solve for x
    x = 341,650,184,844.74/747,810.30
  6. Step 6: Final answer
    x = 456,867.45

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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.