Home / 989,127.10-1,483,483.03-278,989.06

Finding the Fourth Proportional to 989,127.10, 1,483,483.03 and 278,989.06

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Solution

The fourth proportional to 989,127.10, 1,483,483.03 and 278,989.06 is: 418,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,127.10 : 1,483,483.03 = 278,989.06 : x
  2. Step 2: Convert to fraction form
    989,127.10/1,483,483.03 = 278,989.06/x
  3. Step 3: Cross multiply
    989,127.10x = 1,483,483.03 × 278,989.06
  4. Step 4: Simplify right side
    989,127.10x = 413,875,536,065.65
  5. Step 5: Solve for x
    x = 413,875,536,065.65/989,127.10
  6. Step 6: Final answer
    x = 418,425.03

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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.