Home / 486,946.71-730,456.83-145,363.21

Finding the Fourth Proportional to 486,946.71, 730,456.83 and 145,363.21

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Solution

The fourth proportional to 486,946.71, 730,456.83 and 145,363.21 is: 218,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,946.71 : 730,456.83 = 145,363.21 : x
  2. Step 2: Convert to fraction form
    486,946.71/730,456.83 = 145,363.21/x
  3. Step 3: Cross multiply
    486,946.71x = 730,456.83 × 145,363.21
  4. Step 4: Simplify right side
    486,946.71x = 106,181,547,749.08
  5. Step 5: Solve for x
    x = 106,181,547,749.08/486,946.71
  6. Step 6: Final answer
    x = 218,055.79

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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.