Home / 1,338,423.40-2,006,079.90-539,309.80

Finding the Fourth Proportional to 1,338,423.40, 2,006,079.90 and 539,309.80

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Solution

The fourth proportional to 1,338,423.40, 2,006,079.90 and 539,309.80 is: 808,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,423.40 : 2,006,079.90 = 539,309.80 : x
  2. Step 2: Convert to fraction form
    1,338,423.40/2,006,079.90 = 539,309.80/x
  3. Step 3: Cross multiply
    1,338,423.40x = 2,006,079.90 × 539,309.80
  4. Step 4: Simplify right side
    1,338,423.40x = 1,081,898,549,653.02
  5. Step 5: Solve for x
    x = 1,081,898,549,653.02/1,338,423.40
  6. Step 6: Final answer
    x = 808,338.04

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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.