Home / 1,426,340.39-2,139,609.02-415,470.74

Finding the Fourth Proportional to 1,426,340.39, 2,139,609.02 and 415,470.74

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Solution

The fourth proportional to 1,426,340.39, 2,139,609.02 and 415,470.74 is: 623,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,340.39 : 2,139,609.02 = 415,470.74 : x
  2. Step 2: Convert to fraction form
    1,426,340.39/2,139,609.02 = 415,470.74/x
  3. Step 3: Cross multiply
    1,426,340.39x = 2,139,609.02 × 415,470.74
  4. Step 4: Simplify right side
    1,426,340.39x = 888,944,930,074.68
  5. Step 5: Solve for x
    x = 888,944,930,074.68/1,426,340.39
  6. Step 6: Final answer
    x = 623,234.78

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1.5x scale

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.