Home / 717,660.30-1,076,490.45-219,024.30

Finding the Fourth Proportional to 717,660.30, 1,076,490.45 and 219,024.30

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Solution

The fourth proportional to 717,660.30, 1,076,490.45 and 219,024.30 is: 328,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,660.30 : 1,076,490.45 = 219,024.30 : x
  2. Step 2: Convert to fraction form
    717,660.30/1,076,490.45 = 219,024.30/x
  3. Step 3: Cross multiply
    717,660.30x = 1,076,490.45 × 219,024.30
  4. Step 4: Simplify right side
    717,660.30x = 235,777,567,267.94
  5. Step 5: Solve for x
    x = 235,777,567,267.94/717,660.30
  6. Step 6: Final answer
    x = 328,536.45

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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.