Home / 723,823.51-1,086,289.53-521,322.35

Finding the Fourth Proportional to 723,823.51, 1,086,289.53 and 521,322.35

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Solution

The fourth proportional to 723,823.51, 1,086,289.53 and 521,322.35 is: 782,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,823.51 : 1,086,289.53 = 521,322.35 : x
  2. Step 2: Convert to fraction form
    723,823.51/1,086,289.53 = 521,322.35/x
  3. Step 3: Cross multiply
    723,823.51x = 1,086,289.53 × 521,322.35
  4. Step 4: Simplify right side
    723,823.51x = 566,307,006,106.03
  5. Step 5: Solve for x
    x = 566,307,006,106.03/723,823.51
  6. Step 6: Final answer
    x = 782,382.72

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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.