Home / 386,347.17-579,557.67-120,036.18

Finding the Fourth Proportional to 386,347.17, 579,557.67 and 120,036.18

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Solution

The fourth proportional to 386,347.17, 579,557.67 and 120,036.18 is: 180,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,347.17 : 579,557.67 = 120,036.18 : x
  2. Step 2: Convert to fraction form
    386,347.17/579,557.67 = 120,036.18/x
  3. Step 3: Cross multiply
    386,347.17x = 579,557.67 × 120,036.18
  4. Step 4: Simplify right side
    386,347.17x = 69,567,888,796.50
  5. Step 5: Solve for x
    x = 69,567,888,796.50/386,347.17
  6. Step 6: Final answer
    x = 180,065.74

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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.