Home / 918,687.61-1,267,846.32-510,880.69

Finding the Fourth Proportional to 918,687.61, 1,267,846.32 and 510,880.69

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Solution

The fourth proportional to 918,687.61, 1,267,846.32 and 510,880.69 is: 705,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,687.61 : 1,267,846.32 = 510,880.69 : x
  2. Step 2: Convert to fraction form
    918,687.61/1,267,846.32 = 510,880.69/x
  3. Step 3: Cross multiply
    918,687.61x = 1,267,846.32 × 510,880.69
  4. Step 4: Simplify right side
    918,687.61x = 647,718,202,775.56
  5. Step 5: Solve for x
    x = 647,718,202,775.56/918,687.61
  6. Step 6: Final answer
    x = 705,047.28

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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.