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Finding the Fourth Proportional to 668,472.78, 922,536.27 and 366,666.78

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Solution

The fourth proportional to 668,472.78, 922,536.27 and 366,666.78 is: 506,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,472.78 : 922,536.27 = 366,666.78 : x
  2. Step 2: Convert to fraction form
    668,472.78/922,536.27 = 366,666.78/x
  3. Step 3: Cross multiply
    668,472.78x = 922,536.27 × 366,666.78
  4. Step 4: Simplify right side
    668,472.78x = 338,263,403,554.11
  5. Step 5: Solve for x
    x = 338,263,403,554.11/668,472.78
  6. Step 6: Final answer
    x = 506,024.20

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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.