Home / 648,603.20-972,904.80-227,921.60

Finding the Fourth Proportional to 648,603.20, 972,904.80 and 227,921.60

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Solution

The fourth proportional to 648,603.20, 972,904.80 and 227,921.60 is: 341,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,603.20 : 972,904.80 = 227,921.60 : x
  2. Step 2: Convert to fraction form
    648,603.20/972,904.80 = 227,921.60/x
  3. Step 3: Cross multiply
    648,603.20x = 972,904.80 × 227,921.60
  4. Step 4: Simplify right side
    648,603.20x = 221,746,018,663.68
  5. Step 5: Solve for x
    x = 221,746,018,663.68/648,603.20
  6. Step 6: Final answer
    x = 341,882.40

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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.