Home / 847,728.76-1,271,339.51-279,004.88

Finding the Fourth Proportional to 847,728.76, 1,271,339.51 and 279,004.88

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Solution

The fourth proportional to 847,728.76, 1,271,339.51 and 279,004.88 is: 418,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,728.76 : 1,271,339.51 = 279,004.88 : x
  2. Step 2: Convert to fraction form
    847,728.76/1,271,339.51 = 279,004.88/x
  3. Step 3: Cross multiply
    847,728.76x = 1,271,339.51 × 279,004.88
  4. Step 4: Simplify right side
    847,728.76x = 354,709,927,426.81
  5. Step 5: Solve for x
    x = 354,709,927,426.81/847,728.76
  6. Step 6: Final answer
    x = 418,423.85

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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.