Home / 692,721.60-1,039,233.60-393,345.60

Finding the Fourth Proportional to 692,721.60, 1,039,233.60 and 393,345.60

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Solution

The fourth proportional to 692,721.60, 1,039,233.60 and 393,345.60 is: 590,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,721.60 : 1,039,233.60 = 393,345.60 : x
  2. Step 2: Convert to fraction form
    692,721.60/1,039,233.60 = 393,345.60/x
  3. Step 3: Cross multiply
    692,721.60x = 1,039,233.60 × 393,345.60
  4. Step 4: Simplify right side
    692,721.60x = 408,777,963,932.16
  5. Step 5: Solve for x
    x = 408,777,963,932.16/692,721.60
  6. Step 6: Final answer
    x = 590,104.26

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1.5x scale

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.