Home / 1,217,894.20-1,827,278.70-508,139.80

Finding the Fourth Proportional to 1,217,894.20, 1,827,278.70 and 508,139.80

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Solution

The fourth proportional to 1,217,894.20, 1,827,278.70 and 508,139.80 is: 762,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,894.20 : 1,827,278.70 = 508,139.80 : x
  2. Step 2: Convert to fraction form
    1,217,894.20/1,827,278.70 = 508,139.80/x
  3. Step 3: Cross multiply
    1,217,894.20x = 1,827,278.70 × 508,139.80
  4. Step 4: Simplify right side
    1,217,894.20x = 928,513,033,162.26
  5. Step 5: Solve for x
    x = 928,513,033,162.26/1,217,894.20
  6. Step 6: Final answer
    x = 762,392.20

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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.