Home / 1,626,269.06-2,439,209.85-428,284.83

Finding the Fourth Proportional to 1,626,269.06, 2,439,209.85 and 428,284.83

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Solution

The fourth proportional to 1,626,269.06, 2,439,209.85 and 428,284.83 is: 642,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,269.06 : 2,439,209.85 = 428,284.83 : x
  2. Step 2: Convert to fraction form
    1,626,269.06/2,439,209.85 = 428,284.83/x
  3. Step 3: Cross multiply
    1,626,269.06x = 2,439,209.85 × 428,284.83
  4. Step 4: Simplify right side
    1,626,269.06x = 1,044,676,575,941.58
  5. Step 5: Solve for x
    x = 1,044,676,575,941.58/1,626,269.06
  6. Step 6: Final answer
    x = 642,376.22

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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.