Home / 926,626.60-1,390,838.72-447,191.88

Finding the Fourth Proportional to 926,626.60, 1,390,838.72 and 447,191.88

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Solution

The fourth proportional to 926,626.60, 1,390,838.72 and 447,191.88 is: 671,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,626.60 : 1,390,838.72 = 447,191.88 : x
  2. Step 2: Convert to fraction form
    926,626.60/1,390,838.72 = 447,191.88/x
  3. Step 3: Cross multiply
    926,626.60x = 1,390,838.72 × 447,191.88
  4. Step 4: Simplify right side
    926,626.60x = 621,971,781,973.59
  5. Step 5: Solve for x
    x = 621,971,781,973.59/926,626.60
  6. Step 6: Final answer
    x = 671,221.59

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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.