Home / 1,228,934.80-1,843,402.20-342,470.80

Finding the Fourth Proportional to 1,228,934.80, 1,843,402.20 and 342,470.80

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Solution

The fourth proportional to 1,228,934.80, 1,843,402.20 and 342,470.80 is: 513,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,934.80 : 1,843,402.20 = 342,470.80 : x
  2. Step 2: Convert to fraction form
    1,228,934.80/1,843,402.20 = 342,470.80/x
  3. Step 3: Cross multiply
    1,228,934.80x = 1,843,402.20 × 342,470.80
  4. Step 4: Simplify right side
    1,228,934.80x = 631,311,426,155.76
  5. Step 5: Solve for x
    x = 631,311,426,155.76/1,228,934.80
  6. Step 6: Final answer
    x = 513,706.20

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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.