Home / 913,988.45-1,261,317.33-506,089.51

Finding the Fourth Proportional to 913,988.45, 1,261,317.33 and 506,089.51

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Solution

The fourth proportional to 913,988.45, 1,261,317.33 and 506,089.51 is: 698,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,988.45 : 1,261,317.33 = 506,089.51 : x
  2. Step 2: Convert to fraction form
    913,988.45/1,261,317.33 = 506,089.51/x
  3. Step 3: Cross multiply
    913,988.45x = 1,261,317.33 × 506,089.51
  4. Step 4: Simplify right side
    913,988.45x = 638,339,469,494.21
  5. Step 5: Solve for x
    x = 638,339,469,494.21/913,988.45
  6. Step 6: Final answer
    x = 698,410.87

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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.