Home / 1,072,700.95-1,479,708.48-642,731.96

Finding the Fourth Proportional to 1,072,700.95, 1,479,708.48 and 642,731.96

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Solution

The fourth proportional to 1,072,700.95, 1,479,708.48 and 642,731.96 is: 886,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,700.95 : 1,479,708.48 = 642,731.96 : x
  2. Step 2: Convert to fraction form
    1,072,700.95/1,479,708.48 = 642,731.96/x
  3. Step 3: Cross multiply
    1,072,700.95x = 1,479,708.48 × 642,731.96
  4. Step 4: Simplify right side
    1,072,700.95x = 951,055,935,880.79
  5. Step 5: Solve for x
    x = 951,055,935,880.79/1,072,700.95
  6. Step 6: Final answer
    x = 886,599.33

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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.