Home / 785,739.34-1,178,695.95-280,418.14

Finding the Fourth Proportional to 785,739.34, 1,178,695.95 and 280,418.14

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Solution

The fourth proportional to 785,739.34, 1,178,695.95 and 280,418.14 is: 420,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,739.34 : 1,178,695.95 = 280,418.14 : x
  2. Step 2: Convert to fraction form
    785,739.34/1,178,695.95 = 280,418.14/x
  3. Step 3: Cross multiply
    785,739.34x = 1,178,695.95 × 280,418.14
  4. Step 4: Simplify right side
    785,739.34x = 330,527,725,924.53
  5. Step 5: Solve for x
    x = 330,527,725,924.53/785,739.34
  6. Step 6: Final answer
    x = 420,658.24

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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.