Home / 744,678.12-1,027,612.34-417,960.76

Finding the Fourth Proportional to 744,678.12, 1,027,612.34 and 417,960.76

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Solution

The fourth proportional to 744,678.12, 1,027,612.34 and 417,960.76 is: 576,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,678.12 : 1,027,612.34 = 417,960.76 : x
  2. Step 2: Convert to fraction form
    744,678.12/1,027,612.34 = 417,960.76/x
  3. Step 3: Cross multiply
    744,678.12x = 1,027,612.34 × 417,960.76
  4. Step 4: Simplify right side
    744,678.12x = 429,501,634,611.78
  5. Step 5: Solve for x
    x = 429,501,634,611.78/744,678.12
  6. Step 6: Final answer
    x = 576,761.45

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Double scale
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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.