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Finding the Fourth Proportional to 556,916.32, 768,545.28 and 302,267.52

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Solution

The fourth proportional to 556,916.32, 768,545.28 and 302,267.52 is: 417,129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,916.32 : 768,545.28 = 302,267.52 : x
  2. Step 2: Convert to fraction form
    556,916.32/768,545.28 = 302,267.52/x
  3. Step 3: Cross multiply
    556,916.32x = 768,545.28 × 302,267.52
  4. Step 4: Simplify right side
    556,916.32x = 232,306,275,793.31
  5. Step 5: Solve for x
    x = 232,306,275,793.31/556,916.32
  6. Step 6: Final answer
    x = 417,129.59

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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.