Home / 785,738.34-1,178,694.45-280,417.14

Finding the Fourth Proportional to 785,738.34, 1,178,694.45 and 280,417.14

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Solution

The fourth proportional to 785,738.34, 1,178,694.45 and 280,417.14 is: 420,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,738.34 : 1,178,694.45 = 280,417.14 : x
  2. Step 2: Convert to fraction form
    785,738.34/1,178,694.45 = 280,417.14/x
  3. Step 3: Cross multiply
    785,738.34x = 1,178,694.45 × 280,417.14
  4. Step 4: Simplify right side
    785,738.34x = 330,526,126,602.87
  5. Step 5: Solve for x
    x = 330,526,126,602.87/785,738.34
  6. Step 6: Final answer
    x = 420,656.74

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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.