Home / 1,451,036.72-2,176,780.44-740,680.40

Finding the Fourth Proportional to 1,451,036.72, 2,176,780.44 and 740,680.40

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Solution

The fourth proportional to 1,451,036.72, 2,176,780.44 and 740,680.40 is: 1,111,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,036.72 : 2,176,780.44 = 740,680.40 : x
  2. Step 2: Convert to fraction form
    1,451,036.72/2,176,780.44 = 740,680.40/x
  3. Step 3: Cross multiply
    1,451,036.72x = 2,176,780.44 × 740,680.40
  4. Step 4: Simplify right side
    1,451,036.72x = 1,612,298,607,011.38
  5. Step 5: Solve for x
    x = 1,612,298,607,011.38/1,451,036.72
  6. Step 6: Final answer
    x = 1,111,135.63

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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.