Home / 786,116.76-1,178,885.04-280,542.48

Finding the Fourth Proportional to 786,116.76, 1,178,885.04 and 280,542.48

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Solution

The fourth proportional to 786,116.76, 1,178,885.04 and 280,542.48 is: 420,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,116.76 : 1,178,885.04 = 280,542.48 : x
  2. Step 2: Convert to fraction form
    786,116.76/1,178,885.04 = 280,542.48/x
  3. Step 3: Cross multiply
    786,116.76x = 1,178,885.04 × 280,542.48
  4. Step 4: Simplify right side
    786,116.76x = 330,727,332,756.50
  5. Step 5: Solve for x
    x = 330,727,332,756.50/786,116.76
  6. Step 6: Final answer
    x = 420,710.19

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1.5x scale

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.