Home / 588,085.60-880,378.80-388,631.20

Finding the Fourth Proportional to 588,085.60, 880,378.80 and 388,631.20

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Solution

The fourth proportional to 588,085.60, 880,378.80 and 388,631.20 is: 581,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,085.60 : 880,378.80 = 388,631.20 : x
  2. Step 2: Convert to fraction form
    588,085.60/880,378.80 = 388,631.20/x
  3. Step 3: Cross multiply
    588,085.60x = 880,378.80 × 388,631.20
  4. Step 4: Simplify right side
    588,085.60x = 342,142,669,498.56
  5. Step 5: Solve for x
    x = 342,142,669,498.56/588,085.60
  6. Step 6: Final answer
    x = 581,790.59

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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.