Home / 747,467.75-1,031,491.10-407,938.43

Finding the Fourth Proportional to 747,467.75, 1,031,491.10 and 407,938.43

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Solution

The fourth proportional to 747,467.75, 1,031,491.10 and 407,938.43 is: 562,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,467.75 : 1,031,491.10 = 407,938.43 : x
  2. Step 2: Convert to fraction form
    747,467.75/1,031,491.10 = 407,938.43/x
  3. Step 3: Cross multiply
    747,467.75x = 1,031,491.10 × 407,938.43
  4. Step 4: Simplify right side
    747,467.75x = 420,784,852,695.83
  5. Step 5: Solve for x
    x = 420,784,852,695.83/747,467.75
  6. Step 6: Final answer
    x = 562,947.17

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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.