Home / 916,687.39-1,265,019.31-508,792.75

Finding the Fourth Proportional to 916,687.39, 1,265,019.31 and 508,792.75

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Solution

The fourth proportional to 916,687.39, 1,265,019.31 and 508,792.75 is: 702,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,687.39 : 1,265,019.31 = 508,792.75 : x
  2. Step 2: Convert to fraction form
    916,687.39/1,265,019.31 = 508,792.75/x
  3. Step 3: Cross multiply
    916,687.39x = 1,265,019.31 × 508,792.75
  4. Step 4: Simplify right side
    916,687.39x = 643,632,653,538.00
  5. Step 5: Solve for x
    x = 643,632,653,538.00/916,687.39
  6. Step 6: Final answer
    x = 702,128.84

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1.5x scale

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.