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Finding the Fourth Proportional to 692,381.82, 955,448.07 and 386,477.94

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Solution

The fourth proportional to 692,381.82, 955,448.07 and 386,477.94 is: 533,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,381.82 : 955,448.07 = 386,477.94 : x
  2. Step 2: Convert to fraction form
    692,381.82/955,448.07 = 386,477.94/x
  3. Step 3: Cross multiply
    692,381.82x = 955,448.07 × 386,477.94
  4. Step 4: Simplify right side
    692,381.82x = 369,259,601,870.58
  5. Step 5: Solve for x
    x = 369,259,601,870.58/692,381.82
  6. Step 6: Final answer
    x = 533,317.88

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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.