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Finding the Fourth Proportional to 680,484.16, 1,021,102.08 and 281,032

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Solution

The fourth proportional to 680,484.16, 1,021,102.08 and 281,032 is: 421,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,484.16 : 1,021,102.08 = 281,032 : x
  2. Step 2: Convert to fraction form
    680,484.16/1,021,102.08 = 281,032/x
  3. Step 3: Cross multiply
    680,484.16x = 1,021,102.08 × 281,032
  4. Step 4: Simplify right side
    680,484.16x = 286,962,359,746.56
  5. Step 5: Solve for x
    x = 286,962,359,746.56/680,484.16
  6. Step 6: Final answer
    x = 421,703.22

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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.