Home / 913,393.71-1,260,485.64-505,523.61

Finding the Fourth Proportional to 913,393.71, 1,260,485.64 and 505,523.61

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Solution

The fourth proportional to 913,393.71, 1,260,485.64 and 505,523.61 is: 697,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,393.71 : 1,260,485.64 = 505,523.61 : x
  2. Step 2: Convert to fraction form
    913,393.71/1,260,485.64 = 505,523.61/x
  3. Step 3: Cross multiply
    913,393.71x = 1,260,485.64 × 505,523.61
  4. Step 4: Simplify right side
    913,393.71x = 637,205,251,085.96
  5. Step 5: Solve for x
    x = 637,205,251,085.96/913,393.71
  6. Step 6: Final answer
    x = 697,623.87

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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.