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Finding the Fourth Proportional to 668,125.12, 922,006.56 and 366,312.64

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Solution

The fourth proportional to 668,125.12, 922,006.56 and 366,312.64 is: 505,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,125.12 : 922,006.56 = 366,312.64 : x
  2. Step 2: Convert to fraction form
    668,125.12/922,006.56 = 366,312.64/x
  3. Step 3: Cross multiply
    668,125.12x = 922,006.56 × 366,312.64
  4. Step 4: Simplify right side
    668,125.12x = 337,742,657,090.92
  5. Step 5: Solve for x
    x = 337,742,657,090.92/668,125.12
  6. Step 6: Final answer
    x = 505,508.10

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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.