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Finding the Fourth Proportional to 630,610.29, 870,261.27 and 358,717.17

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Solution

The fourth proportional to 630,610.29, 870,261.27 and 358,717.17 is: 495,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,610.29 : 870,261.27 = 358,717.17 : x
  2. Step 2: Convert to fraction form
    630,610.29/870,261.27 = 358,717.17/x
  3. Step 3: Cross multiply
    630,610.29x = 870,261.27 × 358,717.17
  4. Step 4: Simplify right side
    630,610.29x = 312,177,659,935.01
  5. Step 5: Solve for x
    x = 312,177,659,935.01/630,610.29
  6. Step 6: Final answer
    x = 495,040.54

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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.