Home / 447,631.45-617,712.47-243,678.13

Finding the Fourth Proportional to 447,631.45, 617,712.47 and 243,678.13

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Solution

The fourth proportional to 447,631.45, 617,712.47 and 243,678.13 is: 336,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,631.45 : 617,712.47 = 243,678.13 : x
  2. Step 2: Convert to fraction form
    447,631.45/617,712.47 = 243,678.13/x
  3. Step 3: Cross multiply
    447,631.45x = 617,712.47 × 243,678.13
  4. Step 4: Simplify right side
    447,631.45x = 150,523,019,567.28
  5. Step 5: Solve for x
    x = 150,523,019,567.28/447,631.45
  6. Step 6: Final answer
    x = 336,265.51

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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.