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Finding the Fourth Proportional to 648,078.40, 972,117.60 and 600,839.20

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Solution

The fourth proportional to 648,078.40, 972,117.60 and 600,839.20 is: 901,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,078.40 : 972,117.60 = 600,839.20 : x
  2. Step 2: Convert to fraction form
    648,078.40/972,117.60 = 600,839.20/x
  3. Step 3: Cross multiply
    648,078.40x = 972,117.60 × 600,839.20
  4. Step 4: Simplify right side
    648,078.40x = 584,086,361,089.92
  5. Step 5: Solve for x
    x = 584,086,361,089.92/648,078.40
  6. Step 6: Final answer
    x = 901,258.80

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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.