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Finding the Fourth Proportional to 448,616.58, 672,210.90 and 313,935.65

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Solution

The fourth proportional to 448,616.58, 672,210.90 and 313,935.65 is: 470,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,616.58 : 672,210.90 = 313,935.65 : x
  2. Step 2: Convert to fraction form
    448,616.58/672,210.90 = 313,935.65/x
  3. Step 3: Cross multiply
    448,616.58x = 672,210.90 × 313,935.65
  4. Step 4: Simplify right side
    448,616.58x = 211,030,964,988.32
  5. Step 5: Solve for x
    x = 211,030,964,988.32/448,616.58
  6. Step 6: Final answer
    x = 470,403.85

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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.