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Finding the Fourth Proportional to 442,163.60, 610,648.95 and 304,699.94

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Solution

The fourth proportional to 442,163.60, 610,648.95 and 304,699.94 is: 420,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,163.60 : 610,648.95 = 304,699.94 : x
  2. Step 2: Convert to fraction form
    442,163.60/610,648.95 = 304,699.94/x
  3. Step 3: Cross multiply
    442,163.60x = 610,648.95 × 304,699.94
  4. Step 4: Simplify right side
    442,163.60x = 186,064,698,426.06
  5. Step 5: Solve for x
    x = 186,064,698,426.06/442,163.60
  6. Step 6: Final answer
    x = 420,805.10

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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.