Home / 864,098.90-1,296,148.35-490,850.90

Finding the Fourth Proportional to 864,098.90, 1,296,148.35 and 490,850.90

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Solution

The fourth proportional to 864,098.90, 1,296,148.35 and 490,850.90 is: 736,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,098.90 : 1,296,148.35 = 490,850.90 : x
  2. Step 2: Convert to fraction form
    864,098.90/1,296,148.35 = 490,850.90/x
  3. Step 3: Cross multiply
    864,098.90x = 1,296,148.35 × 490,850.90
  4. Step 4: Simplify right side
    864,098.90x = 636,215,584,131.02
  5. Step 5: Solve for x
    x = 636,215,584,131.02/864,098.90
  6. Step 6: Final answer
    x = 736,276.35

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Half scale
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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.