Home / 786,271.28-1,179,275.53-217,709.85

Finding the Fourth Proportional to 786,271.28, 1,179,275.53 and 217,709.85

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Solution

The fourth proportional to 786,271.28, 1,179,275.53 and 217,709.85 is: 326,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,271.28 : 1,179,275.53 = 217,709.85 : x
  2. Step 2: Convert to fraction form
    786,271.28/1,179,275.53 = 217,709.85/x
  3. Step 3: Cross multiply
    786,271.28x = 1,179,275.53 × 217,709.85
  4. Step 4: Simplify right side
    786,271.28x = 256,739,898,744.97
  5. Step 5: Solve for x
    x = 256,739,898,744.97/786,271.28
  6. Step 6: Final answer
    x = 326,528.39

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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.