Home / 1,029,187.80-1,543,781.70-429,949.80

Finding the Fourth Proportional to 1,029,187.80, 1,543,781.70 and 429,949.80

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Solution

The fourth proportional to 1,029,187.80, 1,543,781.70 and 429,949.80 is: 644,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,187.80 : 1,543,781.70 = 429,949.80 : x
  2. Step 2: Convert to fraction form
    1,029,187.80/1,543,781.70 = 429,949.80/x
  3. Step 3: Cross multiply
    1,029,187.80x = 1,543,781.70 × 429,949.80
  4. Step 4: Simplify right side
    1,029,187.80x = 663,748,633,158.66
  5. Step 5: Solve for x
    x = 663,748,633,158.66/1,029,187.80
  6. Step 6: Final answer
    x = 644,924.70

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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.