Home / 1,091,590.20-1,637,385.30-664,687.80

Finding the Fourth Proportional to 1,091,590.20, 1,637,385.30 and 664,687.80

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Solution

The fourth proportional to 1,091,590.20, 1,637,385.30 and 664,687.80 is: 997,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,590.20 : 1,637,385.30 = 664,687.80 : x
  2. Step 2: Convert to fraction form
    1,091,590.20/1,637,385.30 = 664,687.80/x
  3. Step 3: Cross multiply
    1,091,590.20x = 1,637,385.30 × 664,687.80
  4. Step 4: Simplify right side
    1,091,590.20x = 1,088,350,032,809.34
  5. Step 5: Solve for x
    x = 1,088,350,032,809.34/1,091,590.20
  6. Step 6: Final answer
    x = 997,031.70

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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.