Home / 747,757.87-1,031,866.82-408,160.51

Finding the Fourth Proportional to 747,757.87, 1,031,866.82 and 408,160.51

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Solution

The fourth proportional to 747,757.87, 1,031,866.82 and 408,160.51 is: 563,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,757.87 : 1,031,866.82 = 408,160.51 : x
  2. Step 2: Convert to fraction form
    747,757.87/1,031,866.82 = 408,160.51/x
  3. Step 3: Cross multiply
    747,757.87x = 1,031,866.82 × 408,160.51
  4. Step 4: Simplify right side
    747,757.87x = 421,167,287,503.28
  5. Step 5: Solve for x
    x = 421,167,287,503.28/747,757.87
  6. Step 6: Final answer
    x = 563,240.19

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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.