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Finding the Fourth Proportional to 612,398.46, 918,745.24 and 602,230.80

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Solution

The fourth proportional to 612,398.46, 918,745.24 and 602,230.80 is: 903,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,398.46 : 918,745.24 = 602,230.80 : x
  2. Step 2: Convert to fraction form
    612,398.46/918,745.24 = 602,230.80/x
  3. Step 3: Cross multiply
    612,398.46x = 918,745.24 × 602,230.80
  4. Step 4: Simplify right side
    612,398.46x = 553,296,680,881.39
  5. Step 5: Solve for x
    x = 553,296,680,881.39/612,398.46
  6. Step 6: Final answer
    x = 903,491.30

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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.