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Finding the Fourth Proportional to 630,610.48, 870,261.06 and 344,149.12

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Solution

The fourth proportional to 630,610.48, 870,261.06 and 344,149.12 is: 474,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,610.48 : 870,261.06 = 344,149.12 : x
  2. Step 2: Convert to fraction form
    630,610.48/870,261.06 = 344,149.12/x
  3. Step 3: Cross multiply
    630,610.48x = 870,261.06 × 344,149.12
  4. Step 4: Simplify right side
    630,610.48x = 299,499,577,969.27
  5. Step 5: Solve for x
    x = 299,499,577,969.27/630,610.48
  6. Step 6: Final answer
    x = 474,935.94

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1.5x scale

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.