Home / 762,542.10-1,143,485.10-383,316.30

Finding the Fourth Proportional to 762,542.10, 1,143,485.10 and 383,316.30

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Solution

The fourth proportional to 762,542.10, 1,143,485.10 and 383,316.30 is: 574,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,542.10 : 1,143,485.10 = 383,316.30 : x
  2. Step 2: Convert to fraction form
    762,542.10/1,143,485.10 = 383,316.30/x
  3. Step 3: Cross multiply
    762,542.10x = 1,143,485.10 × 383,316.30
  4. Step 4: Simplify right side
    762,542.10x = 438,316,477,637.13
  5. Step 5: Solve for x
    x = 438,316,477,637.13/762,542.10
  6. Step 6: Final answer
    x = 574,809.55

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Double scale
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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.