Home / 988,913.60-1,482,722.40-389,513.60

Finding the Fourth Proportional to 988,913.60, 1,482,722.40 and 389,513.60

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Solution

The fourth proportional to 988,913.60, 1,482,722.40 and 389,513.60 is: 584,015.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,913.60 : 1,482,722.40 = 389,513.60 : x
  2. Step 2: Convert to fraction form
    988,913.60/1,482,722.40 = 389,513.60/x
  3. Step 3: Cross multiply
    988,913.60x = 1,482,722.40 × 389,513.60
  4. Step 4: Simplify right side
    988,913.60x = 577,540,539,824.64
  5. Step 5: Solve for x
    x = 577,540,539,824.64/988,913.60
  6. Step 6: Final answer
    x = 584,015.17

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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.