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Finding the Fourth Proportional to 898,652.87, 1,348,168.70 and 291,393.86

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Solution

The fourth proportional to 898,652.87, 1,348,168.70 and 291,393.86 is: 437,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,652.87 : 1,348,168.70 = 291,393.86 : x
  2. Step 2: Convert to fraction form
    898,652.87/1,348,168.70 = 291,393.86/x
  3. Step 3: Cross multiply
    898,652.87x = 1,348,168.70 × 291,393.86
  4. Step 4: Simplify right side
    898,652.87x = 392,848,079,967.21
  5. Step 5: Solve for x
    x = 392,848,079,967.21/898,652.87
  6. Step 6: Final answer
    x = 437,152.20

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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.