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Finding the Fourth Proportional to 867,327.66, 1,300,243.08 and 417,429.60

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Solution

The fourth proportional to 867,327.66, 1,300,243.08 and 417,429.60 is: 625,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,327.66 : 1,300,243.08 = 417,429.60 : x
  2. Step 2: Convert to fraction form
    867,327.66/1,300,243.08 = 417,429.60/x
  3. Step 3: Cross multiply
    867,327.66x = 1,300,243.08 × 417,429.60
  4. Step 4: Simplify right side
    867,327.66x = 542,759,948,787.17
  5. Step 5: Solve for x
    x = 542,759,948,787.17/867,327.66
  6. Step 6: Final answer
    x = 625,784.20

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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.