Home / 743,256.56-1,025,689.52-403,721.84

Finding the Fourth Proportional to 743,256.56, 1,025,689.52 and 403,721.84

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Solution

The fourth proportional to 743,256.56, 1,025,689.52 and 403,721.84 is: 557,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,256.56 : 1,025,689.52 = 403,721.84 : x
  2. Step 2: Convert to fraction form
    743,256.56/1,025,689.52 = 403,721.84/x
  3. Step 3: Cross multiply
    743,256.56x = 1,025,689.52 × 403,721.84
  4. Step 4: Simplify right side
    743,256.56x = 414,093,260,283.12
  5. Step 5: Solve for x
    x = 414,093,260,283.12/743,256.56
  6. Step 6: Final answer
    x = 557,133.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.