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Finding the Fourth Proportional to 533,498.48, 736,217.55 and 291,780.30

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Solution

The fourth proportional to 533,498.48, 736,217.55 and 291,780.30 is: 402,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,498.48 : 736,217.55 = 291,780.30 : x
  2. Step 2: Convert to fraction form
    533,498.48/736,217.55 = 291,780.30/x
  3. Step 3: Cross multiply
    533,498.48x = 736,217.55 × 291,780.30
  4. Step 4: Simplify right side
    533,498.48x = 214,813,777,604.27
  5. Step 5: Solve for x
    x = 214,813,777,604.27/533,498.48
  6. Step 6: Final answer
    x = 402,651.16

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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.