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Finding the Fourth Proportional to 435,064.20, 651,818.70 and 372,856.20

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Solution

The fourth proportional to 435,064.20, 651,818.70 and 372,856.20 is: 558,617.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,064.20 : 651,818.70 = 372,856.20 : x
  2. Step 2: Convert to fraction form
    435,064.20/651,818.70 = 372,856.20/x
  3. Step 3: Cross multiply
    435,064.20x = 651,818.70 × 372,856.20
  4. Step 4: Simplify right side
    435,064.20x = 243,034,643,570.94
  5. Step 5: Solve for x
    x = 243,034,643,570.94/435,064.20
  6. Step 6: Final answer
    x = 558,617.89

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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.