Home / 750,686.60-1,035,936.82-428,498.76

Finding the Fourth Proportional to 750,686.60, 1,035,936.82 and 428,498.76

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Solution

The fourth proportional to 750,686.60, 1,035,936.82 and 428,498.76 is: 591,322.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,686.60 : 1,035,936.82 = 428,498.76 : x
  2. Step 2: Convert to fraction form
    750,686.60/1,035,936.82 = 428,498.76/x
  3. Step 3: Cross multiply
    750,686.60x = 1,035,936.82 × 428,498.76
  4. Step 4: Simplify right side
    750,686.60x = 443,897,642,808.34
  5. Step 5: Solve for x
    x = 443,897,642,808.34/750,686.60
  6. Step 6: Final answer
    x = 591,322.19

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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.