Home / 913,426.20-1,370,333.70-282,403.80

Finding the Fourth Proportional to 913,426.20, 1,370,333.70 and 282,403.80

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Solution

The fourth proportional to 913,426.20, 1,370,333.70 and 282,403.80 is: 423,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,426.20 : 1,370,333.70 = 282,403.80 : x
  2. Step 2: Convert to fraction form
    913,426.20/1,370,333.70 = 282,403.80/x
  3. Step 3: Cross multiply
    913,426.20x = 1,370,333.70 × 282,403.80
  4. Step 4: Simplify right side
    913,426.20x = 386,987,444,148.06
  5. Step 5: Solve for x
    x = 386,987,444,148.06/913,426.20
  6. Step 6: Final answer
    x = 423,665.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.