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Finding the Fourth Proportional to 402,488.35, 603,726.36 and 102,966.39

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Solution

The fourth proportional to 402,488.35, 603,726.36 and 102,966.39 is: 154,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,488.35 : 603,726.36 = 102,966.39 : x
  2. Step 2: Convert to fraction form
    402,488.35/603,726.36 = 102,966.39/x
  3. Step 3: Cross multiply
    402,488.35x = 603,726.36 × 102,966.39
  4. Step 4: Simplify right side
    402,488.35x = 62,163,523,450.92
  5. Step 5: Solve for x
    x = 62,163,523,450.92/402,488.35
  6. Step 6: Final answer
    x = 154,448.01

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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.