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Finding the Fourth Proportional to 638,002.70, 958,429.65 and 533,026.70

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Solution

The fourth proportional to 638,002.70, 958,429.65 and 533,026.70 is: 800,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,002.70 : 958,429.65 = 533,026.70 : x
  2. Step 2: Convert to fraction form
    638,002.70/958,429.65 = 533,026.70/x
  3. Step 3: Cross multiply
    638,002.70x = 958,429.65 × 533,026.70
  4. Step 4: Simplify right side
    638,002.70x = 510,868,593,521.66
  5. Step 5: Solve for x
    x = 510,868,593,521.66/638,002.70
  6. Step 6: Final answer
    x = 800,731.08

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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.