Home / 783,049.58-1,080,697.85-438,978.29

Finding the Fourth Proportional to 783,049.58, 1,080,697.85 and 438,978.29

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Solution

The fourth proportional to 783,049.58, 1,080,697.85 and 438,978.29 is: 605,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,049.58 : 1,080,697.85 = 438,978.29 : x
  2. Step 2: Convert to fraction form
    783,049.58/1,080,697.85 = 438,978.29/x
  3. Step 3: Cross multiply
    783,049.58x = 1,080,697.85 × 438,978.29
  4. Step 4: Simplify right side
    783,049.58x = 474,402,888,247.46
  5. Step 5: Solve for x
    x = 474,402,888,247.46/783,049.58
  6. Step 6: Final answer
    x = 605,840.17

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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.