Home / 1,206,545.40-1,809,818.10-802,387.80

Finding the Fourth Proportional to 1,206,545.40, 1,809,818.10 and 802,387.80

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Solution

The fourth proportional to 1,206,545.40, 1,809,818.10 and 802,387.80 is: 1,203,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,545.40 : 1,809,818.10 = 802,387.80 : x
  2. Step 2: Convert to fraction form
    1,206,545.40/1,809,818.10 = 802,387.80/x
  3. Step 3: Cross multiply
    1,206,545.40x = 1,809,818.10 × 802,387.80
  4. Step 4: Simplify right side
    1,206,545.40x = 1,452,175,963,659.18
  5. Step 5: Solve for x
    x = 1,452,175,963,659.18/1,206,545.40
  6. Step 6: Final answer
    x = 1,203,581.70

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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.