Home / 743,043.76-1,025,373-403,504.72

Finding the Fourth Proportional to 743,043.76, 1,025,373 and 403,504.72

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Solution

The fourth proportional to 743,043.76, 1,025,373 and 403,504.72 is: 556,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,043.76 : 1,025,373 = 403,504.72 : x
  2. Step 2: Convert to fraction form
    743,043.76/1,025,373 = 403,504.72/x
  3. Step 3: Cross multiply
    743,043.76x = 1,025,373 × 403,504.72
  4. Step 4: Simplify right side
    743,043.76x = 413,742,845,260.56
  5. Step 5: Solve for x
    x = 413,742,845,260.56/743,043.76
  6. Step 6: Final answer
    x = 556,821.64

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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.