Home / 399,981.52-551,980.40-270,959.46

Finding the Fourth Proportional to 399,981.52, 551,980.40 and 270,959.46

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Solution

The fourth proportional to 399,981.52, 551,980.40 and 270,959.46 is: 373,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,981.52 : 551,980.40 = 270,959.46 : x
  2. Step 2: Convert to fraction form
    399,981.52/551,980.40 = 270,959.46/x
  3. Step 3: Cross multiply
    399,981.52x = 551,980.40 × 270,959.46
  4. Step 4: Simplify right side
    399,981.52x = 149,564,311,114.58
  5. Step 5: Solve for x
    x = 149,564,311,114.58/399,981.52
  6. Step 6: Final answer
    x = 373,928.05

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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.