Home / 400,011.12-551,760.84-304,308.72

Finding the Fourth Proportional to 400,011.12, 551,760.84 and 304,308.72

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Solution

The fourth proportional to 400,011.12, 551,760.84 and 304,308.72 is: 419,752.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,011.12 : 551,760.84 = 304,308.72 : x
  2. Step 2: Convert to fraction form
    400,011.12/551,760.84 = 304,308.72/x
  3. Step 3: Cross multiply
    400,011.12x = 551,760.84 × 304,308.72
  4. Step 4: Simplify right side
    400,011.12x = 167,905,634,966.53
  5. Step 5: Solve for x
    x = 167,905,634,966.53/400,011.12
  6. Step 6: Final answer
    x = 419,752.42

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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.