Home / 747,735.32-1,031,869.49-408,203.57

Finding the Fourth Proportional to 747,735.32, 1,031,869.49 and 408,203.57

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Solution

The fourth proportional to 747,735.32, 1,031,869.49 and 408,203.57 is: 563,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,735.32 : 1,031,869.49 = 408,203.57 : x
  2. Step 2: Convert to fraction form
    747,735.32/1,031,869.49 = 408,203.57/x
  3. Step 3: Cross multiply
    747,735.32x = 1,031,869.49 × 408,203.57
  4. Step 4: Simplify right side
    747,735.32x = 421,212,810,130.74
  5. Step 5: Solve for x
    x = 421,212,810,130.74/747,735.32
  6. Step 6: Final answer
    x = 563,318.06

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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.