Home / 760,043.93-1,140,079.11-280,024.66

Finding the Fourth Proportional to 760,043.93, 1,140,079.11 and 280,024.66

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Solution

The fourth proportional to 760,043.93, 1,140,079.11 and 280,024.66 is: 420,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,043.93 : 1,140,079.11 = 280,024.66 : x
  2. Step 2: Convert to fraction form
    760,043.93/1,140,079.11 = 280,024.66/x
  3. Step 3: Cross multiply
    760,043.93x = 1,140,079.11 × 280,024.66
  4. Step 4: Simplify right side
    760,043.93x = 319,250,259,900.48
  5. Step 5: Solve for x
    x = 319,250,259,900.48/760,043.93
  6. Step 6: Final answer
    x = 420,041.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.