Home / 560,078.73-772,888.05-305,424.45

Finding the Fourth Proportional to 560,078.73, 772,888.05 and 305,424.45

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Solution

The fourth proportional to 560,078.73, 772,888.05 and 305,424.45 is: 421,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,078.73 : 772,888.05 = 305,424.45 : x
  2. Step 2: Convert to fraction form
    560,078.73/772,888.05 = 305,424.45/x
  3. Step 3: Cross multiply
    560,078.73x = 772,888.05 × 305,424.45
  4. Step 4: Simplify right side
    560,078.73x = 236,058,907,582.82
  5. Step 5: Solve for x
    x = 236,058,907,582.82/560,078.73
  6. Step 6: Final answer
    x = 421,474.51

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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.