Home / 687,774.96-1,031,690.34-175,453.56

Finding the Fourth Proportional to 687,774.96, 1,031,690.34 and 175,453.56

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Solution

The fourth proportional to 687,774.96, 1,031,690.34 and 175,453.56 is: 263,187.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,774.96 : 1,031,690.34 = 175,453.56 : x
  2. Step 2: Convert to fraction form
    687,774.96/1,031,690.34 = 175,453.56/x
  3. Step 3: Cross multiply
    687,774.96x = 1,031,690.34 × 175,453.56
  4. Step 4: Simplify right side
    687,774.96x = 181,013,742,970.61
  5. Step 5: Solve for x
    x = 181,013,742,970.61/687,774.96
  6. Step 6: Final answer
    x = 263,187.46

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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.