Home / 859,186.80-1,285,718.40-748,087.20

Finding the Fourth Proportional to 859,186.80, 1,285,718.40 and 748,087.20

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Solution

The fourth proportional to 859,186.80, 1,285,718.40 and 748,087.20 is: 1,119,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,186.80 : 1,285,718.40 = 748,087.20 : x
  2. Step 2: Convert to fraction form
    859,186.80/1,285,718.40 = 748,087.20/x
  3. Step 3: Cross multiply
    859,186.80x = 1,285,718.40 × 748,087.20
  4. Step 4: Simplify right side
    859,186.80x = 961,829,477,844.48
  5. Step 5: Solve for x
    x = 961,829,477,844.48/859,186.80
  6. Step 6: Final answer
    x = 1,119,464.91

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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.