Home / 751,614.78-1,125,920-451,931.24

Finding the Fourth Proportional to 751,614.78, 1,125,920 and 451,931.24

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Solution

The fourth proportional to 751,614.78, 1,125,920 and 451,931.24 is: 676,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,614.78 : 1,125,920 = 451,931.24 : x
  2. Step 2: Convert to fraction form
    751,614.78/1,125,920 = 451,931.24/x
  3. Step 3: Cross multiply
    751,614.78x = 1,125,920 × 451,931.24
  4. Step 4: Simplify right side
    751,614.78x = 508,838,421,740.80
  5. Step 5: Solve for x
    x = 508,838,421,740.80/751,614.78
  6. Step 6: Final answer
    x = 676,993.63

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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.