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Finding the Fourth Proportional to 668,567.17, 922,617.32 and 362,642.79

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Solution

The fourth proportional to 668,567.17, 922,617.32 and 362,642.79 is: 500,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,567.17 : 922,617.32 = 362,642.79 : x
  2. Step 2: Convert to fraction form
    668,567.17/922,617.32 = 362,642.79/x
  3. Step 3: Cross multiply
    668,567.17x = 922,617.32 × 362,642.79
  4. Step 4: Simplify right side
    668,567.17x = 334,580,519,027.12
  5. Step 5: Solve for x
    x = 334,580,519,027.12/668,567.17
  6. Step 6: Final answer
    x = 500,444.13

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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.