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Finding the Fourth Proportional to 612,244.80, 918,367.20 and 500,051.70

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Solution

The fourth proportional to 612,244.80, 918,367.20 and 500,051.70 is: 750,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,244.80 : 918,367.20 = 500,051.70 : x
  2. Step 2: Convert to fraction form
    612,244.80/918,367.20 = 500,051.70/x
  3. Step 3: Cross multiply
    612,244.80x = 918,367.20 × 500,051.70
  4. Step 4: Simplify right side
    612,244.80x = 459,231,079,584.24
  5. Step 5: Solve for x
    x = 459,231,079,584.24/612,244.80
  6. Step 6: Final answer
    x = 750,077.55

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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.