Home / 487,286.07-731,053.68-187,686.24

Finding the Fourth Proportional to 487,286.07, 731,053.68 and 187,686.24

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Solution

The fourth proportional to 487,286.07, 731,053.68 and 187,686.24 is: 281,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,286.07 : 731,053.68 = 187,686.24 : x
  2. Step 2: Convert to fraction form
    487,286.07/731,053.68 = 187,686.24/x
  3. Step 3: Cross multiply
    487,286.07x = 731,053.68 × 187,686.24
  4. Step 4: Simplify right side
    487,286.07x = 137,208,716,437.36
  5. Step 5: Solve for x
    x = 137,208,716,437.36/487,286.07
  6. Step 6: Final answer
    x = 281,577.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.