Home / 1,091,815.40-1,637,723.10-981,590.60

Finding the Fourth Proportional to 1,091,815.40, 1,637,723.10 and 981,590.60

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Solution

The fourth proportional to 1,091,815.40, 1,637,723.10 and 981,590.60 is: 1,472,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,815.40 : 1,637,723.10 = 981,590.60 : x
  2. Step 2: Convert to fraction form
    1,091,815.40/1,637,723.10 = 981,590.60/x
  3. Step 3: Cross multiply
    1,091,815.40x = 1,637,723.10 × 981,590.60
  4. Step 4: Simplify right side
    1,091,815.40x = 1,607,573,600,362.86
  5. Step 5: Solve for x
    x = 1,607,573,600,362.86/1,091,815.40
  6. Step 6: Final answer
    x = 1,472,385.90

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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.