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Finding the Fourth Proportional to 867,420.60, 1,301,714.10 and 488,340.60

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Solution

The fourth proportional to 867,420.60, 1,301,714.10 and 488,340.60 is: 732,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,420.60 : 1,301,714.10 = 488,340.60 : x
  2. Step 2: Convert to fraction form
    867,420.60/1,301,714.10 = 488,340.60/x
  3. Step 3: Cross multiply
    867,420.60x = 1,301,714.10 × 488,340.60
  4. Step 4: Simplify right side
    867,420.60x = 635,679,844,622.46
  5. Step 5: Solve for x
    x = 635,679,844,622.46/867,420.60
  6. Step 6: Final answer
    x = 732,839.23

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Double scale
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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.