Home / 648,195.60-972,293.40-424,246.80

Finding the Fourth Proportional to 648,195.60, 972,293.40 and 424,246.80

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Solution

The fourth proportional to 648,195.60, 972,293.40 and 424,246.80 is: 636,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,195.60 : 972,293.40 = 424,246.80 : x
  2. Step 2: Convert to fraction form
    648,195.60/972,293.40 = 424,246.80/x
  3. Step 3: Cross multiply
    648,195.60x = 972,293.40 × 424,246.80
  4. Step 4: Simplify right side
    648,195.60x = 412,492,363,611.12
  5. Step 5: Solve for x
    x = 412,492,363,611.12/648,195.60
  6. Step 6: Final answer
    x = 636,370.20

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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.