Home / 989,061.60-1,483,592.40-279,080.40

Finding the Fourth Proportional to 989,061.60, 1,483,592.40 and 279,080.40

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Solution

The fourth proportional to 989,061.60, 1,483,592.40 and 279,080.40 is: 418,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,061.60 : 1,483,592.40 = 279,080.40 : x
  2. Step 2: Convert to fraction form
    989,061.60/1,483,592.40 = 279,080.40/x
  3. Step 3: Cross multiply
    989,061.60x = 1,483,592.40 × 279,080.40
  4. Step 4: Simplify right side
    989,061.60x = 414,041,560,428.96
  5. Step 5: Solve for x
    x = 414,041,560,428.96/989,061.60
  6. Step 6: Final answer
    x = 418,620.60

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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.