Home / 849,685.56-1,172,428.86-487,042.68

Finding the Fourth Proportional to 849,685.56, 1,172,428.86 and 487,042.68

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Solution

The fourth proportional to 849,685.56, 1,172,428.86 and 487,042.68 is: 672,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,685.56 : 1,172,428.86 = 487,042.68 : x
  2. Step 2: Convert to fraction form
    849,685.56/1,172,428.86 = 487,042.68/x
  3. Step 3: Cross multiply
    849,685.56x = 1,172,428.86 × 487,042.68
  4. Step 4: Simplify right side
    849,685.56x = 571,022,894,083.75
  5. Step 5: Solve for x
    x = 571,022,894,083.75/849,685.56
  6. Step 6: Final answer
    x = 672,040.25

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1.5x scale

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.