Home / 880,387.20-1,214,963.76-493,219.36

Finding the Fourth Proportional to 880,387.20, 1,214,963.76 and 493,219.36

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Solution

The fourth proportional to 880,387.20, 1,214,963.76 and 493,219.36 is: 680,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,387.20 : 1,214,963.76 = 493,219.36 : x
  2. Step 2: Convert to fraction form
    880,387.20/1,214,963.76 = 493,219.36/x
  3. Step 3: Cross multiply
    880,387.20x = 1,214,963.76 × 493,219.36
  4. Step 4: Simplify right side
    880,387.20x = 599,243,648,130.39
  5. Step 5: Solve for x
    x = 599,243,648,130.39/880,387.20
  6. Step 6: Final answer
    x = 680,659.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.