Home / 421,578.83-581,764.17-240,349.12

Finding the Fourth Proportional to 421,578.83, 581,764.17 and 240,349.12

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Solution

The fourth proportional to 421,578.83, 581,764.17 and 240,349.12 is: 331,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,578.83 : 581,764.17 = 240,349.12 : x
  2. Step 2: Convert to fraction form
    421,578.83/581,764.17 = 240,349.12/x
  3. Step 3: Cross multiply
    421,578.83x = 581,764.17 × 240,349.12
  4. Step 4: Simplify right side
    421,578.83x = 139,826,509,026.35
  5. Step 5: Solve for x
    x = 139,826,509,026.35/421,578.83
  6. Step 6: Final answer
    x = 331,673.46

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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.