Home / 559,942.16-772,723.86-305,297.60

Finding the Fourth Proportional to 559,942.16, 772,723.86 and 305,297.60

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Solution

The fourth proportional to 559,942.16, 772,723.86 and 305,297.60 is: 421,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,942.16 : 772,723.86 = 305,297.60 : x
  2. Step 2: Convert to fraction form
    559,942.16/772,723.86 = 305,297.60/x
  3. Step 3: Cross multiply
    559,942.16x = 772,723.86 × 305,297.60
  4. Step 4: Simplify right side
    559,942.16x = 235,910,739,920.74
  5. Step 5: Solve for x
    x = 235,910,739,920.74/559,942.16
  6. Step 6: Final answer
    x = 421,312.69

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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.