Home / 717,340.80-1,076,011.20-663,273.60

Finding the Fourth Proportional to 717,340.80, 1,076,011.20 and 663,273.60

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Solution

The fourth proportional to 717,340.80, 1,076,011.20 and 663,273.60 is: 994,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,340.80 : 1,076,011.20 = 663,273.60 : x
  2. Step 2: Convert to fraction form
    717,340.80/1,076,011.20 = 663,273.60/x
  3. Step 3: Cross multiply
    717,340.80x = 1,076,011.20 × 663,273.60
  4. Step 4: Simplify right side
    717,340.80x = 713,689,822,264.32
  5. Step 5: Solve for x
    x = 713,689,822,264.32/717,340.80
  6. Step 6: Final answer
    x = 994,910.40

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Double scale
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Similar ratio
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1.5x scale

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.