Home / 859,100.04-1,287,823.86-409,699.08

Finding the Fourth Proportional to 859,100.04, 1,287,823.86 and 409,699.08

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Solution

The fourth proportional to 859,100.04, 1,287,823.86 and 409,699.08 is: 614,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,100.04 : 1,287,823.86 = 409,699.08 : x
  2. Step 2: Convert to fraction form
    859,100.04/1,287,823.86 = 409,699.08/x
  3. Step 3: Cross multiply
    859,100.04x = 1,287,823.86 × 409,699.08
  4. Step 4: Simplify right side
    859,100.04x = 527,620,250,644.05
  5. Step 5: Solve for x
    x = 527,620,250,644.05/859,100.04
  6. Step 6: Final answer
    x = 614,154.61

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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.