Home / 859,095.90-1,288,643.85-719,127.90

Finding the Fourth Proportional to 859,095.90, 1,288,643.85 and 719,127.90

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Solution

The fourth proportional to 859,095.90, 1,288,643.85 and 719,127.90 is: 1,078,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,095.90 : 1,288,643.85 = 719,127.90 : x
  2. Step 2: Convert to fraction form
    859,095.90/1,288,643.85 = 719,127.90/x
  3. Step 3: Cross multiply
    859,095.90x = 1,288,643.85 × 719,127.90
  4. Step 4: Simplify right side
    859,095.90x = 926,699,745,698.42
  5. Step 5: Solve for x
    x = 926,699,745,698.42/859,095.90
  6. Step 6: Final answer
    x = 1,078,691.85

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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.