Home / 712,757.76-1,069,140.48-214,118.40

Finding the Fourth Proportional to 712,757.76, 1,069,140.48 and 214,118.40

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Solution

The fourth proportional to 712,757.76, 1,069,140.48 and 214,118.40 is: 321,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,757.76 : 1,069,140.48 = 214,118.40 : x
  2. Step 2: Convert to fraction form
    712,757.76/1,069,140.48 = 214,118.40/x
  3. Step 3: Cross multiply
    712,757.76x = 1,069,140.48 × 214,118.40
  4. Step 4: Simplify right side
    712,757.76x = 228,922,648,952.83
  5. Step 5: Solve for x
    x = 228,922,648,952.83/712,757.76
  6. Step 6: Final answer
    x = 321,178.75

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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.