Home / 1,072,981.20-1,609,687.80-314,821.20

Finding the Fourth Proportional to 1,072,981.20, 1,609,687.80 and 314,821.20

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Solution

The fourth proportional to 1,072,981.20, 1,609,687.80 and 314,821.20 is: 472,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,981.20 : 1,609,687.80 = 314,821.20 : x
  2. Step 2: Convert to fraction form
    1,072,981.20/1,609,687.80 = 314,821.20/x
  3. Step 3: Cross multiply
    1,072,981.20x = 1,609,687.80 × 314,821.20
  4. Step 4: Simplify right side
    1,072,981.20x = 506,763,844,821.36
  5. Step 5: Solve for x
    x = 506,763,844,821.36/1,072,981.20
  6. Step 6: Final answer
    x = 472,295.18

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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.