Home / 870,995.28-1,306,492.31-272,007.77

Finding the Fourth Proportional to 870,995.28, 1,306,492.31 and 272,007.77

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Solution

The fourth proportional to 870,995.28, 1,306,492.31 and 272,007.77 is: 408,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,995.28 : 1,306,492.31 = 272,007.77 : x
  2. Step 2: Convert to fraction form
    870,995.28/1,306,492.31 = 272,007.77/x
  3. Step 3: Cross multiply
    870,995.28x = 1,306,492.31 × 272,007.77
  4. Step 4: Simplify right side
    870,995.28x = 355,376,055,138.98
  5. Step 5: Solve for x
    x = 355,376,055,138.98/870,995.28
  6. Step 6: Final answer
    x = 408,011.46

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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.