Home / 811,056.76-1,119,246.64-448,472.64

Finding the Fourth Proportional to 811,056.76, 1,119,246.64 and 448,472.64

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Solution

The fourth proportional to 811,056.76, 1,119,246.64 and 448,472.64 is: 618,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,056.76 : 1,119,246.64 = 448,472.64 : x
  2. Step 2: Convert to fraction form
    811,056.76/1,119,246.64 = 448,472.64/x
  3. Step 3: Cross multiply
    811,056.76x = 1,119,246.64 × 448,472.64
  4. Step 4: Simplify right side
    811,056.76x = 501,951,495,451.93
  5. Step 5: Solve for x
    x = 501,951,495,451.93/811,056.76
  6. Step 6: Final answer
    x = 618,885.78

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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.