Home / 989,063.60-1,486,705.80-970,401.20

Finding the Fourth Proportional to 989,063.60, 1,486,705.80 and 970,401.20

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Solution

The fourth proportional to 989,063.60, 1,486,705.80 and 970,401.20 is: 1,458,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,063.60 : 1,486,705.80 = 970,401.20 : x
  2. Step 2: Convert to fraction form
    989,063.60/1,486,705.80 = 970,401.20/x
  3. Step 3: Cross multiply
    989,063.60x = 1,486,705.80 × 970,401.20
  4. Step 4: Simplify right side
    989,063.60x = 1,442,701,092,366.96
  5. Step 5: Solve for x
    x = 1,442,701,092,366.96/989,063.60
  6. Step 6: Final answer
    x = 1,458,653.51

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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.