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Finding the Fourth Proportional to 668,258.20, 922,208.28 and 362,344.90

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Solution

The fourth proportional to 668,258.20, 922,208.28 and 362,344.90 is: 500,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,258.20 : 922,208.28 = 362,344.90 : x
  2. Step 2: Convert to fraction form
    668,258.20/922,208.28 = 362,344.90/x
  3. Step 3: Cross multiply
    668,258.20x = 922,208.28 × 362,344.90
  4. Step 4: Simplify right side
    668,258.20x = 334,157,466,995.77
  5. Step 5: Solve for x
    x = 334,157,466,995.77/668,258.20
  6. Step 6: Final answer
    x = 500,042.45

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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.