Home / 648,200.30-972,300.45-488,533.10

Finding the Fourth Proportional to 648,200.30, 972,300.45 and 488,533.10

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Solution

The fourth proportional to 648,200.30, 972,300.45 and 488,533.10 is: 732,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,200.30 : 972,300.45 = 488,533.10 : x
  2. Step 2: Convert to fraction form
    648,200.30/972,300.45 = 488,533.10/x
  3. Step 3: Cross multiply
    648,200.30x = 972,300.45 × 488,533.10
  4. Step 4: Simplify right side
    648,200.30x = 475,000,952,969.90
  5. Step 5: Solve for x
    x = 475,000,952,969.90/648,200.30
  6. Step 6: Final answer
    x = 732,799.65

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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.