Home / 680,836.62-1,020,545.01-380,877.42

Finding the Fourth Proportional to 680,836.62, 1,020,545.01 and 380,877.42

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Solution

The fourth proportional to 680,836.62, 1,020,545.01 and 380,877.42 is: 570,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,836.62 : 1,020,545.01 = 380,877.42 : x
  2. Step 2: Convert to fraction form
    680,836.62/1,020,545.01 = 380,877.42/x
  3. Step 3: Cross multiply
    680,836.62x = 1,020,545.01 × 380,877.42
  4. Step 4: Simplify right side
    680,836.62x = 388,702,550,402.67
  5. Step 5: Solve for x
    x = 388,702,550,402.67/680,836.62
  6. Step 6: Final answer
    x = 570,918.98

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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.