Home / 887,072.80-1,330,609.20-381,875.80

Finding the Fourth Proportional to 887,072.80, 1,330,609.20 and 381,875.80

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Solution

The fourth proportional to 887,072.80, 1,330,609.20 and 381,875.80 is: 572,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,072.80 : 1,330,609.20 = 381,875.80 : x
  2. Step 2: Convert to fraction form
    887,072.80/1,330,609.20 = 381,875.80/x
  3. Step 3: Cross multiply
    887,072.80x = 1,330,609.20 × 381,875.80
  4. Step 4: Simplify right side
    887,072.80x = 508,127,452,737.36
  5. Step 5: Solve for x
    x = 508,127,452,737.36/887,072.80
  6. Step 6: Final answer
    x = 572,813.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.