Home / 813,731.10-1,220,596.65-790,403.10

Finding the Fourth Proportional to 813,731.10, 1,220,596.65 and 790,403.10

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Solution

The fourth proportional to 813,731.10, 1,220,596.65 and 790,403.10 is: 1,185,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,731.10 : 1,220,596.65 = 790,403.10 : x
  2. Step 2: Convert to fraction form
    813,731.10/1,220,596.65 = 790,403.10/x
  3. Step 3: Cross multiply
    813,731.10x = 1,220,596.65 × 790,403.10
  4. Step 4: Simplify right side
    813,731.10x = 964,763,376,009.62
  5. Step 5: Solve for x
    x = 964,763,376,009.62/813,731.10
  6. Step 6: Final answer
    x = 1,185,604.65

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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.