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Finding the Fourth Proportional to 630,528.30, 870,141.69 and 344,060.46

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Solution

The fourth proportional to 630,528.30, 870,141.69 and 344,060.46 is: 474,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,528.30 : 870,141.69 = 344,060.46 : x
  2. Step 2: Convert to fraction form
    630,528.30/870,141.69 = 344,060.46/x
  3. Step 3: Cross multiply
    630,528.30x = 870,141.69 × 344,060.46
  4. Step 4: Simplify right side
    630,528.30x = 299,381,350,126.58
  5. Step 5: Solve for x
    x = 299,381,350,126.58/630,528.30
  6. Step 6: Final answer
    x = 474,810.33

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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.