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Finding the Fourth Proportional to 630,531.68, 870,116.64 and 344,051.84

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Solution

The fourth proportional to 630,531.68, 870,116.64 and 344,051.84 is: 474,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,531.68 : 870,116.64 = 344,051.84 : x
  2. Step 2: Convert to fraction form
    630,531.68/870,116.64 = 344,051.84/x
  3. Step 3: Cross multiply
    630,531.68x = 870,116.64 × 344,051.84
  4. Step 4: Simplify right side
    630,531.68x = 299,365,231,006.62
  5. Step 5: Solve for x
    x = 299,365,231,006.62/630,531.68
  6. Step 6: Final answer
    x = 474,782.22

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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.