Home / 772,429.60-1,158,644.40-740,936.80

Finding the Fourth Proportional to 772,429.60, 1,158,644.40 and 740,936.80

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Solution

The fourth proportional to 772,429.60, 1,158,644.40 and 740,936.80 is: 1,111,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,429.60 : 1,158,644.40 = 740,936.80 : x
  2. Step 2: Convert to fraction form
    772,429.60/1,158,644.40 = 740,936.80/x
  3. Step 3: Cross multiply
    772,429.60x = 1,158,644.40 × 740,936.80
  4. Step 4: Simplify right side
    772,429.60x = 858,482,274,073.92
  5. Step 5: Solve for x
    x = 858,482,274,073.92/772,429.60
  6. Step 6: Final answer
    x = 1,111,405.20

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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.