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Finding the Fourth Proportional to 614,360.84, 921,956.45 and 215,005.19

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Solution

The fourth proportional to 614,360.84, 921,956.45 and 215,005.19 is: 322,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,360.84 : 921,956.45 = 215,005.19 : x
  2. Step 2: Convert to fraction form
    614,360.84/921,956.45 = 215,005.19/x
  3. Step 3: Cross multiply
    614,360.84x = 921,956.45 × 215,005.19
  4. Step 4: Simplify right side
    614,360.84x = 198,225,416,019.17
  5. Step 5: Solve for x
    x = 198,225,416,019.17/614,360.84
  6. Step 6: Final answer
    x = 322,653.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.