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Finding the Fourth Proportional to 632,860.65, 873,347.70 and 346,380.74

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Solution

The fourth proportional to 632,860.65, 873,347.70 and 346,380.74 is: 478,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,860.65 : 873,347.70 = 346,380.74 : x
  2. Step 2: Convert to fraction form
    632,860.65/873,347.70 = 346,380.74/x
  3. Step 3: Cross multiply
    632,860.65x = 873,347.70 × 346,380.74
  4. Step 4: Simplify right side
    632,860.65x = 302,510,821,511.61
  5. Step 5: Solve for x
    x = 302,510,821,511.61/632,860.65
  6. Step 6: Final answer
    x = 478,005.42

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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.