Home / 390,865.43-586,291.96-124,624.14

Finding the Fourth Proportional to 390,865.43, 586,291.96 and 124,624.14

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Solution

The fourth proportional to 390,865.43, 586,291.96 and 124,624.14 is: 186,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,865.43 : 586,291.96 = 124,624.14 : x
  2. Step 2: Convert to fraction form
    390,865.43/586,291.96 = 124,624.14/x
  3. Step 3: Cross multiply
    390,865.43x = 586,291.96 × 124,624.14
  4. Step 4: Simplify right side
    390,865.43x = 73,066,131,303.91
  5. Step 5: Solve for x
    x = 73,066,131,303.91/390,865.43
  6. Step 6: Final answer
    x = 186,934.24

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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.