Home / 989,135.70-1,483,703.55-689,954.10

Finding the Fourth Proportional to 989,135.70, 1,483,703.55 and 689,954.10

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Solution

The fourth proportional to 989,135.70, 1,483,703.55 and 689,954.10 is: 1,034,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,135.70 : 1,483,703.55 = 689,954.10 : x
  2. Step 2: Convert to fraction form
    989,135.70/1,483,703.55 = 689,954.10/x
  3. Step 3: Cross multiply
    989,135.70x = 1,483,703.55 × 689,954.10
  4. Step 4: Simplify right side
    989,135.70x = 1,023,687,347,507.06
  5. Step 5: Solve for x
    x = 1,023,687,347,507.06/989,135.70
  6. Step 6: Final answer
    x = 1,034,931.15

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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.