Home / 864,167.40-1,296,251.10-490,919.40

Finding the Fourth Proportional to 864,167.40, 1,296,251.10 and 490,919.40

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Solution

The fourth proportional to 864,167.40, 1,296,251.10 and 490,919.40 is: 736,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,167.40 : 1,296,251.10 = 490,919.40 : x
  2. Step 2: Convert to fraction form
    864,167.40/1,296,251.10 = 490,919.40/x
  3. Step 3: Cross multiply
    864,167.40x = 1,296,251.10 × 490,919.40
  4. Step 4: Simplify right side
    864,167.40x = 636,354,812,261.34
  5. Step 5: Solve for x
    x = 636,354,812,261.34/864,167.40
  6. Step 6: Final answer
    x = 736,379.10

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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.