Home / 489,928.60-734,115.30-323,522.20

Finding the Fourth Proportional to 489,928.60, 734,115.30 and 323,522.20

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Solution

The fourth proportional to 489,928.60, 734,115.30 and 323,522.20 is: 484,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,928.60 : 734,115.30 = 323,522.20 : x
  2. Step 2: Convert to fraction form
    489,928.60/734,115.30 = 323,522.20/x
  3. Step 3: Cross multiply
    489,928.60x = 734,115.30 × 323,522.20
  4. Step 4: Simplify right side
    489,928.60x = 237,502,596,909.66
  5. Step 5: Solve for x
    x = 237,502,596,909.66/489,928.60
  6. Step 6: Final answer
    x = 484,769.82

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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.