Home / 587,278.05-810,430.12-342,247.20

Finding the Fourth Proportional to 587,278.05, 810,430.12 and 342,247.20

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Solution

The fourth proportional to 587,278.05, 810,430.12 and 342,247.20 is: 472,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,278.05 : 810,430.12 = 342,247.20 : x
  2. Step 2: Convert to fraction form
    587,278.05/810,430.12 = 342,247.20/x
  3. Step 3: Cross multiply
    587,278.05x = 810,430.12 × 342,247.20
  4. Step 4: Simplify right side
    587,278.05x = 277,367,439,365.66
  5. Step 5: Solve for x
    x = 277,367,439,365.66/587,278.05
  6. Step 6: Final answer
    x = 472,293.22

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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.