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Finding the Fourth Proportional to 668,718.24, 922,828.32 and 366,905.76

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Solution

The fourth proportional to 668,718.24, 922,828.32 and 366,905.76 is: 506,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,718.24 : 922,828.32 = 366,905.76 : x
  2. Step 2: Convert to fraction form
    668,718.24/922,828.32 = 366,905.76/x
  3. Step 3: Cross multiply
    668,718.24x = 922,828.32 × 366,905.76
  4. Step 4: Simplify right side
    668,718.24x = 338,591,026,099.12
  5. Step 5: Solve for x
    x = 338,591,026,099.12/668,718.24
  6. Step 6: Final answer
    x = 506,328.38

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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.