Home / 780,932.48-1,077,693.12-423,236.48

Finding the Fourth Proportional to 780,932.48, 1,077,693.12 and 423,236.48

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Solution

The fourth proportional to 780,932.48, 1,077,693.12 and 423,236.48 is: 584,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,932.48 : 1,077,693.12 = 423,236.48 : x
  2. Step 2: Convert to fraction form
    780,932.48/1,077,693.12 = 423,236.48/x
  3. Step 3: Cross multiply
    780,932.48x = 1,077,693.12 × 423,236.48
  4. Step 4: Simplify right side
    780,932.48x = 456,119,042,629.02
  5. Step 5: Solve for x
    x = 456,119,042,629.02/780,932.48
  6. Step 6: Final answer
    x = 584,069.76

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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.