Home / 680,006.20-1,019,717.70-342,916.60

Finding the Fourth Proportional to 680,006.20, 1,019,717.70 and 342,916.60

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Solution

The fourth proportional to 680,006.20, 1,019,717.70 and 342,916.60 is: 514,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,006.20 : 1,019,717.70 = 342,916.60 : x
  2. Step 2: Convert to fraction form
    680,006.20/1,019,717.70 = 342,916.60/x
  3. Step 3: Cross multiply
    680,006.20x = 1,019,717.70 × 342,916.60
  4. Step 4: Simplify right side
    680,006.20x = 349,678,126,643.82
  5. Step 5: Solve for x
    x = 349,678,126,643.82/680,006.20
  6. Step 6: Final answer
    x = 514,227.85

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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.