Home / 1,185,619.88-1,778,712.75-386,902.91

Finding the Fourth Proportional to 1,185,619.88, 1,778,712.75 and 386,902.91

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Solution

The fourth proportional to 1,185,619.88, 1,778,712.75 and 386,902.91 is: 580,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,619.88 : 1,778,712.75 = 386,902.91 : x
  2. Step 2: Convert to fraction form
    1,185,619.88/1,778,712.75 = 386,902.91/x
  3. Step 3: Cross multiply
    1,185,619.88x = 1,778,712.75 × 386,902.91
  4. Step 4: Simplify right side
    1,185,619.88x = 688,189,143,475.88
  5. Step 5: Solve for x
    x = 688,189,143,475.88/1,185,619.88
  6. Step 6: Final answer
    x = 580,446.70

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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.