Home / 917,787.15-1,266,405.57-509,882.49

Finding the Fourth Proportional to 917,787.15, 1,266,405.57 and 509,882.49

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Solution

The fourth proportional to 917,787.15, 1,266,405.57 and 509,882.49 is: 703,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,787.15 : 1,266,405.57 = 509,882.49 : x
  2. Step 2: Convert to fraction form
    917,787.15/1,266,405.57 = 509,882.49/x
  3. Step 3: Cross multiply
    917,787.15x = 1,266,405.57 × 509,882.49
  4. Step 4: Simplify right side
    917,787.15x = 645,718,025,381.47
  5. Step 5: Solve for x
    x = 645,718,025,381.47/917,787.15
  6. Step 6: Final answer
    x = 703,559.67

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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.