Home / 771,381.92-1,157,819.20-372,303.63

Finding the Fourth Proportional to 771,381.92, 1,157,819.20 and 372,303.63

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Solution

The fourth proportional to 771,381.92, 1,157,819.20 and 372,303.63 is: 558,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,381.92 : 1,157,819.20 = 372,303.63 : x
  2. Step 2: Convert to fraction form
    771,381.92/1,157,819.20 = 372,303.63/x
  3. Step 3: Cross multiply
    771,381.92x = 1,157,819.20 × 372,303.63
  4. Step 4: Simplify right side
    771,381.92x = 431,060,283,393.08
  5. Step 5: Solve for x
    x = 431,060,283,393.08/771,381.92
  6. Step 6: Final answer
    x = 558,815.64

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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.