Home / 870,113.12-1,304,857.01-301,341.06

Finding the Fourth Proportional to 870,113.12, 1,304,857.01 and 301,341.06

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Solution

The fourth proportional to 870,113.12, 1,304,857.01 and 301,341.06 is: 451,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,113.12 : 1,304,857.01 = 301,341.06 : x
  2. Step 2: Convert to fraction form
    870,113.12/1,304,857.01 = 301,341.06/x
  3. Step 3: Cross multiply
    870,113.12x = 1,304,857.01 × 301,341.06
  4. Step 4: Simplify right side
    870,113.12x = 393,206,993,035.13
  5. Step 5: Solve for x
    x = 393,206,993,035.13/870,113.12
  6. Step 6: Final answer
    x = 451,903.31

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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.