Home / 862,041.57-1,189,532.21-480,103.89

Finding the Fourth Proportional to 862,041.57, 1,189,532.21 and 480,103.89

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Solution

The fourth proportional to 862,041.57, 1,189,532.21 and 480,103.89 is: 662,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,041.57 : 1,189,532.21 = 480,103.89 : x
  2. Step 2: Convert to fraction form
    862,041.57/1,189,532.21 = 480,103.89/x
  3. Step 3: Cross multiply
    862,041.57x = 1,189,532.21 × 480,103.89
  4. Step 4: Simplify right side
    862,041.57x = 571,099,041,301.30
  5. Step 5: Solve for x
    x = 571,099,041,301.30/862,041.57
  6. Step 6: Final answer
    x = 662,495.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.