Home / 890,637.20-1,336,117.80-291,431.60

Finding the Fourth Proportional to 890,637.20, 1,336,117.80 and 291,431.60

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Solution

The fourth proportional to 890,637.20, 1,336,117.80 and 291,431.60 is: 437,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,637.20 : 1,336,117.80 = 291,431.60 : x
  2. Step 2: Convert to fraction form
    890,637.20/1,336,117.80 = 291,431.60/x
  3. Step 3: Cross multiply
    890,637.20x = 1,336,117.80 × 291,431.60
  4. Step 4: Simplify right side
    890,637.20x = 389,386,948,242.48
  5. Step 5: Solve for x
    x = 389,386,948,242.48/890,637.20
  6. Step 6: Final answer
    x = 437,200.41

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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.