Home / 900,591.31-1,242,644.61-513,389.80

Finding the Fourth Proportional to 900,591.31, 1,242,644.61 and 513,389.80

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Solution

The fourth proportional to 900,591.31, 1,242,644.61 and 513,389.80 is: 708,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,591.31 : 1,242,644.61 = 513,389.80 : x
  2. Step 2: Convert to fraction form
    900,591.31/1,242,644.61 = 513,389.80/x
  3. Step 3: Cross multiply
    900,591.31x = 1,242,644.61 × 513,389.80
  4. Step 4: Simplify right side
    900,591.31x = 637,961,067,798.98
  5. Step 5: Solve for x
    x = 637,961,067,798.98/900,591.31
  6. Step 6: Final answer
    x = 708,380.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.