Home / 627,131.29-865,457.27-340,667.77

Finding the Fourth Proportional to 627,131.29, 865,457.27 and 340,667.77

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Solution

The fourth proportional to 627,131.29, 865,457.27 and 340,667.77 is: 470,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,131.29 : 865,457.27 = 340,667.77 : x
  2. Step 2: Convert to fraction form
    627,131.29/865,457.27 = 340,667.77/x
  3. Step 3: Cross multiply
    627,131.29x = 865,457.27 × 340,667.77
  4. Step 4: Simplify right side
    627,131.29x = 294,833,398,201.19
  5. Step 5: Solve for x
    x = 294,833,398,201.19/627,131.29
  6. Step 6: Final answer
    x = 470,130.26

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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.