Home / 727,521.60-1,091,282.40-447,196.80

Finding the Fourth Proportional to 727,521.60, 1,091,282.40 and 447,196.80

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Solution

The fourth proportional to 727,521.60, 1,091,282.40 and 447,196.80 is: 670,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,521.60 : 1,091,282.40 = 447,196.80 : x
  2. Step 2: Convert to fraction form
    727,521.60/1,091,282.40 = 447,196.80/x
  3. Step 3: Cross multiply
    727,521.60x = 1,091,282.40 × 447,196.80
  4. Step 4: Simplify right side
    727,521.60x = 488,017,997,176.32
  5. Step 5: Solve for x
    x = 488,017,997,176.32/727,521.60
  6. Step 6: Final answer
    x = 670,795.20

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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.