Home / 989,213.60-1,483,820.40-983,308.70

Finding the Fourth Proportional to 989,213.60, 1,483,820.40 and 983,308.70

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Solution

The fourth proportional to 989,213.60, 1,483,820.40 and 983,308.70 is: 1,474,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,213.60 : 1,483,820.40 = 983,308.70 : x
  2. Step 2: Convert to fraction form
    989,213.60/1,483,820.40 = 983,308.70/x
  3. Step 3: Cross multiply
    989,213.60x = 1,483,820.40 × 983,308.70
  4. Step 4: Simplify right side
    989,213.60x = 1,459,053,508,557.48
  5. Step 5: Solve for x
    x = 1,459,053,508,557.48/989,213.60
  6. Step 6: Final answer
    x = 1,474,963.05

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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.