Home / 750,685.60-1,035,935.44-428,497.76

Finding the Fourth Proportional to 750,685.60, 1,035,935.44 and 428,497.76

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Solution

The fourth proportional to 750,685.60, 1,035,935.44 and 428,497.76 is: 591,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,685.60 : 1,035,935.44 = 428,497.76 : x
  2. Step 2: Convert to fraction form
    750,685.60/1,035,935.44 = 428,497.76/x
  3. Step 3: Cross multiply
    750,685.60x = 1,035,935.44 × 428,497.76
  4. Step 4: Simplify right side
    750,685.60x = 443,896,015,544.61
  5. Step 5: Solve for x
    x = 443,896,015,544.61/750,685.60
  6. Step 6: Final answer
    x = 591,320.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.