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Finding the Fourth Proportional to 632,335.35, 872,643.66 and 345,855.45

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Solution

The fourth proportional to 632,335.35, 872,643.66 and 345,855.45 is: 477,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,335.35 : 872,643.66 = 345,855.45 : x
  2. Step 2: Convert to fraction form
    632,335.35/872,643.66 = 345,855.45/x
  3. Step 3: Cross multiply
    632,335.35x = 872,643.66 × 345,855.45
  4. Step 4: Simplify right side
    632,335.35x = 301,808,565,718.95
  5. Step 5: Solve for x
    x = 301,808,565,718.95/632,335.35
  6. Step 6: Final answer
    x = 477,291.94

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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.