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Finding the Fourth Proportional to 648,002.40, 972,003.60 and 596,680.80

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Solution

The fourth proportional to 648,002.40, 972,003.60 and 596,680.80 is: 895,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,002.40 : 972,003.60 = 596,680.80 : x
  2. Step 2: Convert to fraction form
    648,002.40/972,003.60 = 596,680.80/x
  3. Step 3: Cross multiply
    648,002.40x = 972,003.60 × 596,680.80
  4. Step 4: Simplify right side
    648,002.40x = 579,975,885,650.88
  5. Step 5: Solve for x
    x = 579,975,885,650.88/648,002.40
  6. Step 6: Final answer
    x = 895,021.20

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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.