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Finding the Fourth Proportional to 632,572.66, 872,924.61 and 378,064.18

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Solution

The fourth proportional to 632,572.66, 872,924.61 and 378,064.18 is: 521,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,572.66 : 872,924.61 = 378,064.18 : x
  2. Step 2: Convert to fraction form
    632,572.66/872,924.61 = 378,064.18/x
  3. Step 3: Cross multiply
    632,572.66x = 872,924.61 × 378,064.18
  4. Step 4: Simplify right side
    632,572.66x = 330,021,526,881.47
  5. Step 5: Solve for x
    x = 330,021,526,881.47/632,572.66
  6. Step 6: Final answer
    x = 521,713.23

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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.