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Finding the Fourth Proportional to 434,429.70, 651,644.55 and 359,780.10

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Solution

The fourth proportional to 434,429.70, 651,644.55 and 359,780.10 is: 539,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,429.70 : 651,644.55 = 359,780.10 : x
  2. Step 2: Convert to fraction form
    434,429.70/651,644.55 = 359,780.10/x
  3. Step 3: Cross multiply
    434,429.70x = 651,644.55 × 359,780.10
  4. Step 4: Simplify right side
    434,429.70x = 234,448,741,363.46
  5. Step 5: Solve for x
    x = 234,448,741,363.46/434,429.70
  6. Step 6: Final answer
    x = 539,670.15

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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.