Home / 989,777.52-1,483,939.32-315,470.64

Finding the Fourth Proportional to 989,777.52, 1,483,939.32 and 315,470.64

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Solution

The fourth proportional to 989,777.52, 1,483,939.32 and 315,470.64 is: 472,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,777.52 : 1,483,939.32 = 315,470.64 : x
  2. Step 2: Convert to fraction form
    989,777.52/1,483,939.32 = 315,470.64/x
  3. Step 3: Cross multiply
    989,777.52x = 1,483,939.32 × 315,470.64
  4. Step 4: Simplify right side
    989,777.52x = 468,139,287,001.57
  5. Step 5: Solve for x
    x = 468,139,287,001.57/989,777.52
  6. Step 6: Final answer
    x = 472,974.26

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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.