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Finding the Fourth Proportional to 652,415.76, 900,737.46 and 434,930.76

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Solution

The fourth proportional to 652,415.76, 900,737.46 and 434,930.76 is: 600,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,415.76 : 900,737.46 = 434,930.76 : x
  2. Step 2: Convert to fraction form
    652,415.76/900,737.46 = 434,930.76/x
  3. Step 3: Cross multiply
    652,415.76x = 900,737.46 × 434,930.76
  4. Step 4: Simplify right side
    652,415.76x = 391,758,428,038.27
  5. Step 5: Solve for x
    x = 391,758,428,038.27/652,415.76
  6. Step 6: Final answer
    x = 600,473.58

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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.