Home / 869,542.77-1,199,969.06-487,569.59

Finding the Fourth Proportional to 869,542.77, 1,199,969.06 and 487,569.59

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Solution

The fourth proportional to 869,542.77, 1,199,969.06 and 487,569.59 is: 672,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,542.77 : 1,199,969.06 = 487,569.59 : x
  2. Step 2: Convert to fraction form
    869,542.77/1,199,969.06 = 487,569.59/x
  3. Step 3: Cross multiply
    869,542.77x = 1,199,969.06 × 487,569.59
  4. Step 4: Simplify right side
    869,542.77x = 585,068,414,159.19
  5. Step 5: Solve for x
    x = 585,068,414,159.19/869,542.77
  6. Step 6: Final answer
    x = 672,846.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.