Home / 539,582.23-743,931.70-442,428.40

Finding the Fourth Proportional to 539,582.23, 743,931.70 and 442,428.40

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Solution

The fourth proportional to 539,582.23, 743,931.70 and 442,428.40 is: 609,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,582.23 : 743,931.70 = 442,428.40 : x
  2. Step 2: Convert to fraction form
    539,582.23/743,931.70 = 442,428.40/x
  3. Step 3: Cross multiply
    539,582.23x = 743,931.70 × 442,428.40
  4. Step 4: Simplify right side
    539,582.23x = 329,136,511,740.28
  5. Step 5: Solve for x
    x = 329,136,511,740.28/539,582.23
  6. Step 6: Final answer
    x = 609,983.97

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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.