Home / 867,207.06-1,299,127.41-639,088.38

Finding the Fourth Proportional to 867,207.06, 1,299,127.41 and 639,088.38

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Solution

The fourth proportional to 867,207.06, 1,299,127.41 and 639,088.38 is: 957,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,207.06 : 1,299,127.41 = 639,088.38 : x
  2. Step 2: Convert to fraction form
    867,207.06/1,299,127.41 = 639,088.38/x
  3. Step 3: Cross multiply
    867,207.06x = 1,299,127.41 × 639,088.38
  4. Step 4: Simplify right side
    867,207.06x = 830,257,231,870.50
  5. Step 5: Solve for x
    x = 830,257,231,870.50/867,207.06
  6. Step 6: Final answer
    x = 957,392.15

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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.