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Finding the Fourth Proportional to 742,737.76, 1,024,990.56 and 403,206

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Solution

The fourth proportional to 742,737.76, 1,024,990.56 and 403,206 is: 556,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,737.76 : 1,024,990.56 = 403,206 : x
  2. Step 2: Convert to fraction form
    742,737.76/1,024,990.56 = 403,206/x
  3. Step 3: Cross multiply
    742,737.76x = 1,024,990.56 × 403,206
  4. Step 4: Simplify right side
    742,737.76x = 413,282,343,735.36
  5. Step 5: Solve for x
    x = 413,282,343,735.36/742,737.76
  6. Step 6: Final answer
    x = 556,431.04

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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.