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Finding the Fourth Proportional to 675,288.80, 931,763.76 and 373,424.48

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Solution

The fourth proportional to 675,288.80, 931,763.76 and 373,424.48 is: 515,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,288.80 : 931,763.76 = 373,424.48 : x
  2. Step 2: Convert to fraction form
    675,288.80/931,763.76 = 373,424.48/x
  3. Step 3: Cross multiply
    675,288.80x = 931,763.76 × 373,424.48
  4. Step 4: Simplify right side
    675,288.80x = 347,943,397,560.85
  5. Step 5: Solve for x
    x = 347,943,397,560.85/675,288.80
  6. Step 6: Final answer
    x = 515,251.25

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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.