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Finding the Fourth Proportional to 404,605.80, 606,908.70 and 370,488.60

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Solution

The fourth proportional to 404,605.80, 606,908.70 and 370,488.60 is: 555,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,605.80 : 606,908.70 = 370,488.60 : x
  2. Step 2: Convert to fraction form
    404,605.80/606,908.70 = 370,488.60/x
  3. Step 3: Cross multiply
    404,605.80x = 606,908.70 × 370,488.60
  4. Step 4: Simplify right side
    404,605.80x = 224,852,754,590.82
  5. Step 5: Solve for x
    x = 224,852,754,590.82/404,605.80
  6. Step 6: Final answer
    x = 555,732.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.