Home / 903,253.40-1,246,544.87-521,304.78

Finding the Fourth Proportional to 903,253.40, 1,246,544.87 and 521,304.78

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Solution

The fourth proportional to 903,253.40, 1,246,544.87 and 521,304.78 is: 719,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,253.40 : 1,246,544.87 = 521,304.78 : x
  2. Step 2: Convert to fraction form
    903,253.40/1,246,544.87 = 521,304.78/x
  3. Step 3: Cross multiply
    903,253.40x = 1,246,544.87 × 521,304.78
  4. Step 4: Simplify right side
    903,253.40x = 649,829,796,608.96
  5. Step 5: Solve for x
    x = 649,829,796,608.96/903,253.40
  6. Step 6: Final answer
    x = 719,432.44

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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.