Home / 743,353.20-1,025,828.64-403,821.72

Finding the Fourth Proportional to 743,353.20, 1,025,828.64 and 403,821.72

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Solution

The fourth proportional to 743,353.20, 1,025,828.64 and 403,821.72 is: 557,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,353.20 : 1,025,828.64 = 403,821.72 : x
  2. Step 2: Convert to fraction form
    743,353.20/1,025,828.64 = 403,821.72/x
  3. Step 3: Cross multiply
    743,353.20x = 1,025,828.64 × 403,821.72
  4. Step 4: Simplify right side
    743,353.20x = 414,251,885,830.06
  5. Step 5: Solve for x
    x = 414,251,885,830.06/743,353.20
  6. Step 6: Final answer
    x = 557,274.64

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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.