Home / 1,243,934.60-1,866,132.30-402,513.80

Finding the Fourth Proportional to 1,243,934.60, 1,866,132.30 and 402,513.80

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Solution

The fourth proportional to 1,243,934.60, 1,866,132.30 and 402,513.80 is: 603,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,934.60 : 1,866,132.30 = 402,513.80 : x
  2. Step 2: Convert to fraction form
    1,243,934.60/1,866,132.30 = 402,513.80/x
  3. Step 3: Cross multiply
    1,243,934.60x = 1,866,132.30 × 402,513.80
  4. Step 4: Simplify right side
    1,243,934.60x = 751,144,003,375.74
  5. Step 5: Solve for x
    x = 751,144,003,375.74/1,243,934.60
  6. Step 6: Final answer
    x = 603,845.25

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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.