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Finding the Fourth Proportional to 404,820.90, 606,842.55 and 314,813.70

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Solution

The fourth proportional to 404,820.90, 606,842.55 and 314,813.70 is: 471,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,820.90 : 606,842.55 = 314,813.70 : x
  2. Step 2: Convert to fraction form
    404,820.90/606,842.55 = 314,813.70/x
  3. Step 3: Cross multiply
    404,820.90x = 606,842.55 × 314,813.70
  4. Step 4: Simplify right side
    404,820.90x = 191,042,348,482.94
  5. Step 5: Solve for x
    x = 191,042,348,482.94/404,820.90
  6. Step 6: Final answer
    x = 471,918.20

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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.