Home / 648,002.10-972,003.15-457,230.90

Finding the Fourth Proportional to 648,002.10, 972,003.15 and 457,230.90

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Solution

The fourth proportional to 648,002.10, 972,003.15 and 457,230.90 is: 685,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,002.10 : 972,003.15 = 457,230.90 : x
  2. Step 2: Convert to fraction form
    648,002.10/972,003.15 = 457,230.90/x
  3. Step 3: Cross multiply
    648,002.10x = 972,003.15 × 457,230.90
  4. Step 4: Simplify right side
    648,002.10x = 444,429,875,077.34
  5. Step 5: Solve for x
    x = 444,429,875,077.34/648,002.10
  6. Step 6: Final answer
    x = 685,846.35

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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.