Home / 747,645.40-1,031,772.90-425,295.64

Finding the Fourth Proportional to 747,645.40, 1,031,772.90 and 425,295.64

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Solution

The fourth proportional to 747,645.40, 1,031,772.90 and 425,295.64 is: 586,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,645.40 : 1,031,772.90 = 425,295.64 : x
  2. Step 2: Convert to fraction form
    747,645.40/1,031,772.90 = 425,295.64/x
  3. Step 3: Cross multiply
    747,645.40x = 1,031,772.90 × 425,295.64
  4. Step 4: Simplify right side
    747,645.40x = 438,808,515,840.16
  5. Step 5: Solve for x
    x = 438,808,515,840.16/747,645.40
  6. Step 6: Final answer
    x = 586,920.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.