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Finding the Fourth Proportional to 553,001.08, 828,172.80 and 315,624.10

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Solution

The fourth proportional to 553,001.08, 828,172.80 and 315,624.10 is: 472,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,001.08 : 828,172.80 = 315,624.10 : x
  2. Step 2: Convert to fraction form
    553,001.08/828,172.80 = 315,624.10/x
  3. Step 3: Cross multiply
    553,001.08x = 828,172.80 × 315,624.10
  4. Step 4: Simplify right side
    553,001.08x = 261,391,294,644.48
  5. Step 5: Solve for x
    x = 261,391,294,644.48/553,001.08
  6. Step 6: Final answer
    x = 472,677.73

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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.