Home / 777,715.20-1,166,572.80-245,399.40

Finding the Fourth Proportional to 777,715.20, 1,166,572.80 and 245,399.40

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Solution

The fourth proportional to 777,715.20, 1,166,572.80 and 245,399.40 is: 368,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,715.20 : 1,166,572.80 = 245,399.40 : x
  2. Step 2: Convert to fraction form
    777,715.20/1,166,572.80 = 245,399.40/x
  3. Step 3: Cross multiply
    777,715.20x = 1,166,572.80 × 245,399.40
  4. Step 4: Simplify right side
    777,715.20x = 286,276,265,176.32
  5. Step 5: Solve for x
    x = 286,276,265,176.32/777,715.20
  6. Step 6: Final answer
    x = 368,099.10

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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.