Home / 390,752.24-586,121.94-124,509.16

Finding the Fourth Proportional to 390,752.24, 586,121.94 and 124,509.16

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Solution

The fourth proportional to 390,752.24, 586,121.94 and 124,509.16 is: 186,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,752.24 : 586,121.94 = 124,509.16 : x
  2. Step 2: Convert to fraction form
    390,752.24/586,121.94 = 124,509.16/x
  3. Step 3: Cross multiply
    390,752.24x = 586,121.94 × 124,509.16
  4. Step 4: Simplify right side
    390,752.24x = 72,977,550,406.97
  5. Step 5: Solve for x
    x = 72,977,550,406.97/390,752.24
  6. Step 6: Final answer
    x = 186,761.69

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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.