Home / 784,854.32-1,083,066.96-445,315.28

Finding the Fourth Proportional to 784,854.32, 1,083,066.96 and 445,315.28

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Solution

The fourth proportional to 784,854.32, 1,083,066.96 and 445,315.28 is: 614,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,854.32 : 1,083,066.96 = 445,315.28 : x
  2. Step 2: Convert to fraction form
    784,854.32/1,083,066.96 = 445,315.28/x
  3. Step 3: Cross multiply
    784,854.32x = 1,083,066.96 × 445,315.28
  4. Step 4: Simplify right side
    784,854.32x = 482,306,266,551.15
  5. Step 5: Solve for x
    x = 482,306,266,551.15/784,854.32
  6. Step 6: Final answer
    x = 614,516.93

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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.