Home / 825,643.72-1,139,401.38-463,148.20

Finding the Fourth Proportional to 825,643.72, 1,139,401.38 and 463,148.20

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Solution

The fourth proportional to 825,643.72, 1,139,401.38 and 463,148.20 is: 639,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,643.72 : 1,139,401.38 = 463,148.20 : x
  2. Step 2: Convert to fraction form
    825,643.72/1,139,401.38 = 463,148.20/x
  3. Step 3: Cross multiply
    825,643.72x = 1,139,401.38 × 463,148.20
  4. Step 4: Simplify right side
    825,643.72x = 527,711,698,224.52
  5. Step 5: Solve for x
    x = 527,711,698,224.52/825,643.72
  6. Step 6: Final answer
    x = 639,151.83

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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.