Home / 873,116.70-1,309,675.05-768,140.70

Finding the Fourth Proportional to 873,116.70, 1,309,675.05 and 768,140.70

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Solution

The fourth proportional to 873,116.70, 1,309,675.05 and 768,140.70 is: 1,152,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,116.70 : 1,309,675.05 = 768,140.70 : x
  2. Step 2: Convert to fraction form
    873,116.70/1,309,675.05 = 768,140.70/x
  3. Step 3: Cross multiply
    873,116.70x = 1,309,675.05 × 768,140.70
  4. Step 4: Simplify right side
    873,116.70x = 1,006,014,709,679.54
  5. Step 5: Solve for x
    x = 1,006,014,709,679.54/873,116.70
  6. Step 6: Final answer
    x = 1,152,211.05

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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.