Home / 884,330.70-1,326,496.05-509,916.30

Finding the Fourth Proportional to 884,330.70, 1,326,496.05 and 509,916.30

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Solution

The fourth proportional to 884,330.70, 1,326,496.05 and 509,916.30 is: 764,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,330.70 : 1,326,496.05 = 509,916.30 : x
  2. Step 2: Convert to fraction form
    884,330.70/1,326,496.05 = 509,916.30/x
  3. Step 3: Cross multiply
    884,330.70x = 1,326,496.05 × 509,916.30
  4. Step 4: Simplify right side
    884,330.70x = 676,401,957,780.62
  5. Step 5: Solve for x
    x = 676,401,957,780.62/884,330.70
  6. Step 6: Final answer
    x = 764,874.45

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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.