Home / 725,873.91-1,086,681.68-508,980.57

Finding the Fourth Proportional to 725,873.91, 1,086,681.68 and 508,980.57

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Solution

The fourth proportional to 725,873.91, 1,086,681.68 and 508,980.57 is: 761,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,873.91 : 1,086,681.68 = 508,980.57 : x
  2. Step 2: Convert to fraction form
    725,873.91/1,086,681.68 = 508,980.57/x
  3. Step 3: Cross multiply
    725,873.91x = 1,086,681.68 × 508,980.57
  4. Step 4: Simplify right side
    725,873.91x = 553,099,860,894.96
  5. Step 5: Solve for x
    x = 553,099,860,894.96/725,873.91
  6. Step 6: Final answer
    x = 761,977.88

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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.