Home / 915,784.28-1,263,859.92-508,017.50

Finding the Fourth Proportional to 915,784.28, 1,263,859.92 and 508,017.50

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Solution

The fourth proportional to 915,784.28, 1,263,859.92 and 508,017.50 is: 701,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,784.28 : 1,263,859.92 = 508,017.50 : x
  2. Step 2: Convert to fraction form
    915,784.28/1,263,859.92 = 508,017.50/x
  3. Step 3: Cross multiply
    915,784.28x = 1,263,859.92 × 508,017.50
  4. Step 4: Simplify right side
    915,784.28x = 642,062,956,908.60
  5. Step 5: Solve for x
    x = 642,062,956,908.60/915,784.28
  6. Step 6: Final answer
    x = 701,107.20

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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.