Home / 903,284.56-1,246,442.88-521,434.36

Finding the Fourth Proportional to 903,284.56, 1,246,442.88 and 521,434.36

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Solution

The fourth proportional to 903,284.56, 1,246,442.88 and 521,434.36 is: 719,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,284.56 : 1,246,442.88 = 521,434.36 : x
  2. Step 2: Convert to fraction form
    903,284.56/1,246,442.88 = 521,434.36/x
  3. Step 3: Cross multiply
    903,284.56x = 1,246,442.88 × 521,434.36
  4. Step 4: Simplify right side
    903,284.56x = 649,938,145,409.36
  5. Step 5: Solve for x
    x = 649,938,145,409.36/903,284.56
  6. Step 6: Final answer
    x = 719,527.57

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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.