Home / 1,152,020.20-1,725,006.30-813,231.40

Finding the Fourth Proportional to 1,152,020.20, 1,725,006.30 and 813,231.40

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Solution

The fourth proportional to 1,152,020.20, 1,725,006.30 and 813,231.40 is: 1,217,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,020.20 : 1,725,006.30 = 813,231.40 : x
  2. Step 2: Convert to fraction form
    1,152,020.20/1,725,006.30 = 813,231.40/x
  3. Step 3: Cross multiply
    1,152,020.20x = 1,725,006.30 × 813,231.40
  4. Step 4: Simplify right side
    1,152,020.20x = 1,402,829,288,357.82
  5. Step 5: Solve for x
    x = 1,402,829,288,357.82/1,152,020.20
  6. Step 6: Final answer
    x = 1,217,712.41

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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.