Home / 913,326.54-1,260,393.08-505,456.51

Finding the Fourth Proportional to 913,326.54, 1,260,393.08 and 505,456.51

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Solution

The fourth proportional to 913,326.54, 1,260,393.08 and 505,456.51 is: 697,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,326.54 : 1,260,393.08 = 505,456.51 : x
  2. Step 2: Convert to fraction form
    913,326.54/1,260,393.08 = 505,456.51/x
  3. Step 3: Cross multiply
    913,326.54x = 1,260,393.08 × 505,456.51
  4. Step 4: Simplify right side
    913,326.54x = 637,073,884,489.92
  5. Step 5: Solve for x
    x = 637,073,884,489.92/913,326.54
  6. Step 6: Final answer
    x = 697,531.34

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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.