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Finding the Fourth Proportional to 668,798.72, 922,905.60 and 366,968.96

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Solution

The fourth proportional to 668,798.72, 922,905.60 and 366,968.96 is: 506,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,798.72 : 922,905.60 = 366,968.96 : x
  2. Step 2: Convert to fraction form
    668,798.72/922,905.60 = 366,968.96/x
  3. Step 3: Cross multiply
    668,798.72x = 922,905.60 × 366,968.96
  4. Step 4: Simplify right side
    668,798.72x = 338,677,708,210.18
  5. Step 5: Solve for x
    x = 338,677,708,210.18/668,798.72
  6. Step 6: Final answer
    x = 506,397.06

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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.