Home / 1,402,379.28-2,103,923.76-391,500.48

Finding the Fourth Proportional to 1,402,379.28, 2,103,923.76 and 391,500.48

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Solution

The fourth proportional to 1,402,379.28, 2,103,923.76 and 391,500.48 is: 587,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,379.28 : 2,103,923.76 = 391,500.48 : x
  2. Step 2: Convert to fraction form
    1,402,379.28/2,103,923.76 = 391,500.48/x
  3. Step 3: Cross multiply
    1,402,379.28x = 2,103,923.76 × 391,500.48
  4. Step 4: Simplify right side
    1,402,379.28x = 823,687,161,923.41
  5. Step 5: Solve for x
    x = 823,687,161,923.41/1,402,379.28
  6. Step 6: Final answer
    x = 587,349.78

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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.