Home / 741,967.83-1,023,887.93-402,428.79

Finding the Fourth Proportional to 741,967.83, 1,023,887.93 and 402,428.79

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Solution

The fourth proportional to 741,967.83, 1,023,887.93 and 402,428.79 is: 555,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,967.83 : 1,023,887.93 = 402,428.79 : x
  2. Step 2: Convert to fraction form
    741,967.83/1,023,887.93 = 402,428.79/x
  3. Step 3: Cross multiply
    741,967.83x = 1,023,887.93 × 402,428.79
  4. Step 4: Simplify right side
    741,967.83x = 412,041,978,753.36
  5. Step 5: Solve for x
    x = 412,041,978,753.36/741,967.83
  6. Step 6: Final answer
    x = 555,336.72

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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.