Home / 760,262.24-1,049,155.80-420,749.12

Finding the Fourth Proportional to 760,262.24, 1,049,155.80 and 420,749.12

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Solution

The fourth proportional to 760,262.24, 1,049,155.80 and 420,749.12 is: 580,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,262.24 : 1,049,155.80 = 420,749.12 : x
  2. Step 2: Convert to fraction form
    760,262.24/1,049,155.80 = 420,749.12/x
  3. Step 3: Cross multiply
    760,262.24x = 1,049,155.80 × 420,749.12
  4. Step 4: Simplify right side
    760,262.24x = 441,431,379,592.90
  5. Step 5: Solve for x
    x = 441,431,379,592.90/760,262.24
  6. Step 6: Final answer
    x = 580,630.41

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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.