Home / 747,813.67-1,031,977.48-408,281.92

Finding the Fourth Proportional to 747,813.67, 1,031,977.48 and 408,281.92

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Solution

The fourth proportional to 747,813.67, 1,031,977.48 and 408,281.92 is: 563,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,813.67 : 1,031,977.48 = 408,281.92 : x
  2. Step 2: Convert to fraction form
    747,813.67/1,031,977.48 = 408,281.92/x
  3. Step 3: Cross multiply
    747,813.67x = 1,031,977.48 × 408,281.92
  4. Step 4: Simplify right side
    747,813.67x = 421,337,746,931.16
  5. Step 5: Solve for x
    x = 421,337,746,931.16/747,813.67
  6. Step 6: Final answer
    x = 563,426.11

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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.