Home / 676,563.54-1,015,178.76-316,758.72

Finding the Fourth Proportional to 676,563.54, 1,015,178.76 and 316,758.72

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Solution

The fourth proportional to 676,563.54, 1,015,178.76 and 316,758.72 is: 475,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,563.54 : 1,015,178.76 = 316,758.72 : x
  2. Step 2: Convert to fraction form
    676,563.54/1,015,178.76 = 316,758.72/x
  3. Step 3: Cross multiply
    676,563.54x = 1,015,178.76 × 316,758.72
  4. Step 4: Simplify right side
    676,563.54x = 321,566,724,588.79
  5. Step 5: Solve for x
    x = 321,566,724,588.79/676,563.54
  6. Step 6: Final answer
    x = 475,294.20

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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.