Home / 1,011,431.12-1,517,368.40-380,344.72

Finding the Fourth Proportional to 1,011,431.12, 1,517,368.40 and 380,344.72

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Solution

The fourth proportional to 1,011,431.12, 1,517,368.40 and 380,344.72 is: 570,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,431.12 : 1,517,368.40 = 380,344.72 : x
  2. Step 2: Convert to fraction form
    1,011,431.12/1,517,368.40 = 380,344.72/x
  3. Step 3: Cross multiply
    1,011,431.12x = 1,517,368.40 × 380,344.72
  4. Step 4: Simplify right side
    1,011,431.12x = 577,123,059,234.85
  5. Step 5: Solve for x
    x = 577,123,059,234.85/1,011,431.12
  6. Step 6: Final answer
    x = 570,600.46

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1.5x scale

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.