Home / 988,905.60-1,482,710.40-389,505.60

Finding the Fourth Proportional to 988,905.60, 1,482,710.40 and 389,505.60

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Solution

The fourth proportional to 988,905.60, 1,482,710.40 and 389,505.60 is: 584,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,905.60 : 1,482,710.40 = 389,505.60 : x
  2. Step 2: Convert to fraction form
    988,905.60/1,482,710.40 = 389,505.60/x
  3. Step 3: Cross multiply
    988,905.60x = 1,482,710.40 × 389,505.60
  4. Step 4: Simplify right side
    988,905.60x = 577,524,003,978.24
  5. Step 5: Solve for x
    x = 577,524,003,978.24/988,905.60
  6. Step 6: Final answer
    x = 584,003.17

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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.