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Finding the Fourth Proportional to 539,421.40, 810,006.90 and 362,711.80

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Solution

The fourth proportional to 539,421.40, 810,006.90 and 362,711.80 is: 544,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,421.40 : 810,006.90 = 362,711.80 : x
  2. Step 2: Convert to fraction form
    539,421.40/810,006.90 = 362,711.80/x
  3. Step 3: Cross multiply
    539,421.40x = 810,006.90 × 362,711.80
  4. Step 4: Simplify right side
    539,421.40x = 293,799,060,711.42
  5. Step 5: Solve for x
    x = 293,799,060,711.42/539,421.40
  6. Step 6: Final answer
    x = 544,655.92

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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.