Home / 1,209,981.23-1,814,972.43-499,228.10

Finding the Fourth Proportional to 1,209,981.23, 1,814,972.43 and 499,228.10

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Solution

The fourth proportional to 1,209,981.23, 1,814,972.43 and 499,228.10 is: 748,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,981.23 : 1,814,972.43 = 499,228.10 : x
  2. Step 2: Convert to fraction form
    1,209,981.23/1,814,972.43 = 499,228.10/x
  3. Step 3: Cross multiply
    1,209,981.23x = 1,814,972.43 × 499,228.10
  4. Step 4: Simplify right side
    1,209,981.23x = 906,085,237,781.28
  5. Step 5: Solve for x
    x = 906,085,237,781.28/1,209,981.23
  6. Step 6: Final answer
    x = 748,842.39

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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.