Home / 918,534.72-1,267,621.19-510,643.37

Finding the Fourth Proportional to 918,534.72, 1,267,621.19 and 510,643.37

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Solution

The fourth proportional to 918,534.72, 1,267,621.19 and 510,643.37 is: 704,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,534.72 : 1,267,621.19 = 510,643.37 : x
  2. Step 2: Convert to fraction form
    918,534.72/1,267,621.19 = 510,643.37/x
  3. Step 3: Cross multiply
    918,534.72x = 1,267,621.19 × 510,643.37
  4. Step 4: Simplify right side
    918,534.72x = 647,302,347,453.69
  5. Step 5: Solve for x
    x = 647,302,347,453.69/918,534.72
  6. Step 6: Final answer
    x = 704,711.90

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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.