Home / 740,545.12-1,021,187.82-633,469.60

Finding the Fourth Proportional to 740,545.12, 1,021,187.82 and 633,469.60

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Solution

The fourth proportional to 740,545.12, 1,021,187.82 and 633,469.60 is: 873,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,545.12 : 1,021,187.82 = 633,469.60 : x
  2. Step 2: Convert to fraction form
    740,545.12/1,021,187.82 = 633,469.60/x
  3. Step 3: Cross multiply
    740,545.12x = 1,021,187.82 × 633,469.60
  4. Step 4: Simplify right side
    740,545.12x = 646,891,439,860.27
  5. Step 5: Solve for x
    x = 646,891,439,860.27/740,545.12
  6. Step 6: Final answer
    x = 873,534.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.