Home / 413,631.90-571,029.71-278,376.89

Finding the Fourth Proportional to 413,631.90, 571,029.71 and 278,376.89

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Solution

The fourth proportional to 413,631.90, 571,029.71 and 278,376.89 is: 384,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,631.90 : 571,029.71 = 278,376.89 : x
  2. Step 2: Convert to fraction form
    413,631.90/571,029.71 = 278,376.89/x
  3. Step 3: Cross multiply
    413,631.90x = 571,029.71 × 278,376.89
  4. Step 4: Simplify right side
    413,631.90x = 158,961,470,520.37
  5. Step 5: Solve for x
    x = 158,961,470,520.37/413,631.90
  6. Step 6: Final answer
    x = 384,306.60

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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.