Home / 872,512.90-1,308,510.15-339,727.30

Finding the Fourth Proportional to 872,512.90, 1,308,510.15 and 339,727.30

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Solution

The fourth proportional to 872,512.90, 1,308,510.15 and 339,727.30 is: 509,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,512.90 : 1,308,510.15 = 339,727.30 : x
  2. Step 2: Convert to fraction form
    872,512.90/1,308,510.15 = 339,727.30/x
  3. Step 3: Cross multiply
    872,512.90x = 1,308,510.15 × 339,727.30
  4. Step 4: Simplify right side
    872,512.90x = 444,536,620,282.10
  5. Step 5: Solve for x
    x = 444,536,620,282.10/872,512.90
  6. Step 6: Final answer
    x = 509,490.03

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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.