Home / 750,725.30-1,035,989.21-428,427.10

Finding the Fourth Proportional to 750,725.30, 1,035,989.21 and 428,427.10

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Solution

The fourth proportional to 750,725.30, 1,035,989.21 and 428,427.10 is: 591,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,725.30 : 1,035,989.21 = 428,427.10 : x
  2. Step 2: Convert to fraction form
    750,725.30/1,035,989.21 = 428,427.10/x
  3. Step 3: Cross multiply
    750,725.30x = 1,035,989.21 × 428,427.10
  4. Step 4: Simplify right side
    750,725.30x = 443,845,852,871.59
  5. Step 5: Solve for x
    x = 443,845,852,871.59/750,725.30
  6. Step 6: Final answer
    x = 591,222.72

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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.