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Finding the Fourth Proportional to 630,649.29, 870,298.46 and 344,175.75

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Solution

The fourth proportional to 630,649.29, 870,298.46 and 344,175.75 is: 474,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,649.29 : 870,298.46 = 344,175.75 : x
  2. Step 2: Convert to fraction form
    630,649.29/870,298.46 = 344,175.75/x
  3. Step 3: Cross multiply
    630,649.29x = 870,298.46 × 344,175.75
  4. Step 4: Simplify right side
    630,649.29x = 299,535,623,473.47
  5. Step 5: Solve for x
    x = 299,535,623,473.47/630,649.29
  6. Step 6: Final answer
    x = 474,963.86

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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.