Home / 1,255,484.80-1,880,116.80-805,513.60

Finding the Fourth Proportional to 1,255,484.80, 1,880,116.80 and 805,513.60

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Solution

The fourth proportional to 1,255,484.80, 1,880,116.80 and 805,513.60 is: 1,206,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,484.80 : 1,880,116.80 = 805,513.60 : x
  2. Step 2: Convert to fraction form
    1,255,484.80/1,880,116.80 = 805,513.60/x
  3. Step 3: Cross multiply
    1,255,484.80x = 1,880,116.80 × 805,513.60
  4. Step 4: Simplify right side
    1,255,484.80x = 1,514,459,651,988.48
  5. Step 5: Solve for x
    x = 1,514,459,651,988.48/1,255,484.80
  6. Step 6: Final answer
    x = 1,206,274.78

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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.