Home / 713,153.20-1,069,729.80-447,732.40

Finding the Fourth Proportional to 713,153.20, 1,069,729.80 and 447,732.40

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Solution

The fourth proportional to 713,153.20, 1,069,729.80 and 447,732.40 is: 671,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,153.20 : 1,069,729.80 = 447,732.40 : x
  2. Step 2: Convert to fraction form
    713,153.20/1,069,729.80 = 447,732.40/x
  3. Step 3: Cross multiply
    713,153.20x = 1,069,729.80 × 447,732.40
  4. Step 4: Simplify right side
    713,153.20x = 478,952,690,705.52
  5. Step 5: Solve for x
    x = 478,952,690,705.52/713,153.20
  6. Step 6: Final answer
    x = 671,598.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.