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Finding the Fourth Proportional to 668,026.95, 921,859.70 and 362,089.95

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Solution

The fourth proportional to 668,026.95, 921,859.70 and 362,089.95 is: 499,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,026.95 : 921,859.70 = 362,089.95 : x
  2. Step 2: Convert to fraction form
    668,026.95/921,859.70 = 362,089.95/x
  3. Step 3: Cross multiply
    668,026.95x = 921,859.70 × 362,089.95
  4. Step 4: Simplify right side
    668,026.95x = 333,796,130,869.57
  5. Step 5: Solve for x
    x = 333,796,130,869.57/668,026.95
  6. Step 6: Final answer
    x = 499,674.65

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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.