Home / 830,834.34-1,245,753.20-380,991.68

Finding the Fourth Proportional to 830,834.34, 1,245,753.20 and 380,991.68

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Solution

The fourth proportional to 830,834.34, 1,245,753.20 and 380,991.68 is: 571,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,834.34 : 1,245,753.20 = 380,991.68 : x
  2. Step 2: Convert to fraction form
    830,834.34/1,245,753.20 = 380,991.68/x
  3. Step 3: Cross multiply
    830,834.34x = 1,245,753.20 × 380,991.68
  4. Step 4: Simplify right side
    830,834.34x = 474,621,604,533.38
  5. Step 5: Solve for x
    x = 474,621,604,533.38/830,834.34
  6. Step 6: Final answer
    x = 571,259.01

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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.