Home / 828,490.76-1,143,306.36-465,914.52

Finding the Fourth Proportional to 828,490.76, 1,143,306.36 and 465,914.52

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Solution

The fourth proportional to 828,490.76, 1,143,306.36 and 465,914.52 is: 642,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,490.76 : 1,143,306.36 = 465,914.52 : x
  2. Step 2: Convert to fraction form
    828,490.76/1,143,306.36 = 465,914.52/x
  3. Step 3: Cross multiply
    828,490.76x = 1,143,306.36 × 465,914.52
  4. Step 4: Simplify right side
    828,490.76x = 532,683,033,932.35
  5. Step 5: Solve for x
    x = 532,683,033,932.35/828,490.76
  6. Step 6: Final answer
    x = 642,955.91

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Double scale
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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.