Home / 813,384.27-1,220,331.46-489,525.72

Finding the Fourth Proportional to 813,384.27, 1,220,331.46 and 489,525.72

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Solution

The fourth proportional to 813,384.27, 1,220,331.46 and 489,525.72 is: 734,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,384.27 : 1,220,331.46 = 489,525.72 : x
  2. Step 2: Convert to fraction form
    813,384.27/1,220,331.46 = 489,525.72/x
  3. Step 3: Cross multiply
    813,384.27x = 1,220,331.46 × 489,525.72
  4. Step 4: Simplify right side
    813,384.27x = 597,383,636,595.15
  5. Step 5: Solve for x
    x = 597,383,636,595.15/813,384.27
  6. Step 6: Final answer
    x = 734,442.08

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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.