Home / 421,281.44-581,312.24-270,582.56

Finding the Fourth Proportional to 421,281.44, 581,312.24 and 270,582.56

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Solution

The fourth proportional to 421,281.44, 581,312.24 and 270,582.56 is: 373,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,281.44 : 581,312.24 = 270,582.56 : x
  2. Step 2: Convert to fraction form
    421,281.44/581,312.24 = 270,582.56/x
  3. Step 3: Cross multiply
    421,281.44x = 581,312.24 × 270,582.56
  4. Step 4: Simplify right side
    421,281.44x = 157,292,954,058.53
  5. Step 5: Solve for x
    x = 157,292,954,058.53/421,281.44
  6. Step 6: Final answer
    x = 373,367.87

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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.