Home / 834,376.64-1,251,601.20-408,271.28

Finding the Fourth Proportional to 834,376.64, 1,251,601.20 and 408,271.28

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Solution

The fourth proportional to 834,376.64, 1,251,601.20 and 408,271.28 is: 612,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,376.64 : 1,251,601.20 = 408,271.28 : x
  2. Step 2: Convert to fraction form
    834,376.64/1,251,601.20 = 408,271.28/x
  3. Step 3: Cross multiply
    834,376.64x = 1,251,601.20 × 408,271.28
  4. Step 4: Simplify right side
    834,376.64x = 510,992,823,973.54
  5. Step 5: Solve for x
    x = 510,992,823,973.54/834,376.64
  6. Step 6: Final answer
    x = 612,424.65

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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.