Home / 378,733.95-522,432.45-242,719.56

Finding the Fourth Proportional to 378,733.95, 522,432.45 and 242,719.56

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Solution

The fourth proportional to 378,733.95, 522,432.45 and 242,719.56 is: 334,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,733.95 : 522,432.45 = 242,719.56 : x
  2. Step 2: Convert to fraction form
    378,733.95/522,432.45 = 242,719.56/x
  3. Step 3: Cross multiply
    378,733.95x = 522,432.45 × 242,719.56
  4. Step 4: Simplify right side
    378,733.95x = 126,804,574,393.72
  5. Step 5: Solve for x
    x = 126,804,574,393.72/378,733.95
  6. Step 6: Final answer
    x = 334,811.74

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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.