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Finding the Fourth Proportional to 630,563.52, 870,177.66 and 404,209.02

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Solution

The fourth proportional to 630,563.52, 870,177.66 and 404,209.02 is: 557,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,563.52 : 870,177.66 = 404,209.02 : x
  2. Step 2: Convert to fraction form
    630,563.52/870,177.66 = 404,209.02/x
  3. Step 3: Cross multiply
    630,563.52x = 870,177.66 × 404,209.02
  4. Step 4: Simplify right side
    630,563.52x = 351,733,659,174.49
  5. Step 5: Solve for x
    x = 351,733,659,174.49/630,563.52
  6. Step 6: Final answer
    x = 557,808.45

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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.