Home / 1,425,470.67-1,967,290.47-813,715.40

Finding the Fourth Proportional to 1,425,470.67, 1,967,290.47 and 813,715.40

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Solution

The fourth proportional to 1,425,470.67, 1,967,290.47 and 813,715.40 is: 1,123,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,470.67 : 1,967,290.47 = 813,715.40 : x
  2. Step 2: Convert to fraction form
    1,425,470.67/1,967,290.47 = 813,715.40/x
  3. Step 3: Cross multiply
    1,425,470.67x = 1,967,290.47 × 813,715.40
  4. Step 4: Simplify right side
    1,425,470.67x = 1,600,814,556,630.46
  5. Step 5: Solve for x
    x = 1,600,814,556,630.46/1,425,470.67
  6. Step 6: Final answer
    x = 1,123,007.71

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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.