Home / 447,749.10-617,908.86-243,807.90

Finding the Fourth Proportional to 447,749.10, 617,908.86 and 243,807.90

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Solution

The fourth proportional to 447,749.10, 617,908.86 and 243,807.90 is: 336,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,749.10 : 617,908.86 = 243,807.90 : x
  2. Step 2: Convert to fraction form
    447,749.10/617,908.86 = 243,807.90/x
  3. Step 3: Cross multiply
    447,749.10x = 617,908.86 × 243,807.90
  4. Step 4: Simplify right side
    447,749.10x = 150,651,061,547.99
  5. Step 5: Solve for x
    x = 150,651,061,547.99/447,749.10
  6. Step 6: Final answer
    x = 336,463.13

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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.