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Finding the Fourth Proportional to 668,436.92, 922,443.42 and 362,513.28

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Solution

The fourth proportional to 668,436.92, 922,443.42 and 362,513.28 is: 500,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,436.92 : 922,443.42 = 362,513.28 : x
  2. Step 2: Convert to fraction form
    668,436.92/922,443.42 = 362,513.28/x
  3. Step 3: Cross multiply
    668,436.92x = 922,443.42 × 362,513.28
  4. Step 4: Simplify right side
    668,436.92x = 334,397,989,798.62
  5. Step 5: Solve for x
    x = 334,397,989,798.62/668,436.92
  6. Step 6: Final answer
    x = 500,268.58

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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.