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Finding the Fourth Proportional to 890,124, 1,335,353.40 and 357,687.24

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Solution

The fourth proportional to 890,124, 1,335,353.40 and 357,687.24 is: 536,598.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,124 : 1,335,353.40 = 357,687.24 : x
  2. Step 2: Convert to fraction form
    890,124/1,335,353.40 = 357,687.24/x
  3. Step 3: Cross multiply
    890,124x = 1,335,353.40 × 357,687.24
  4. Step 4: Simplify right side
    890,124x = 477,638,872,070.62
  5. Step 5: Solve for x
    x = 477,638,872,070.62/890,124
  6. Step 6: Final answer
    x = 536,598.13

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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.