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Finding the Fourth Proportional to 668,663.63, 922,772 and 366,857.63

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Solution

The fourth proportional to 668,663.63, 922,772 and 366,857.63 is: 506,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,663.63 : 922,772 = 366,857.63 : x
  2. Step 2: Convert to fraction form
    668,663.63/922,772 = 366,857.63/x
  3. Step 3: Cross multiply
    668,663.63x = 922,772 × 366,857.63
  4. Step 4: Simplify right side
    668,663.63x = 338,525,948,950.36
  5. Step 5: Solve for x
    x = 338,525,948,950.36/668,663.63
  6. Step 6: Final answer
    x = 506,272.41

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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.