Home / 980,859.48-1,353,746.52-817,256.40

Finding the Fourth Proportional to 980,859.48, 1,353,746.52 and 817,256.40

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Solution

The fourth proportional to 980,859.48, 1,353,746.52 and 817,256.40 is: 1,127,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,859.48 : 1,353,746.52 = 817,256.40 : x
  2. Step 2: Convert to fraction form
    980,859.48/1,353,746.52 = 817,256.40/x
  3. Step 3: Cross multiply
    980,859.48x = 1,353,746.52 × 817,256.40
  4. Step 4: Simplify right side
    980,859.48x = 1,106,358,007,447.73
  5. Step 5: Solve for x
    x = 1,106,358,007,447.73/980,859.48
  6. Step 6: Final answer
    x = 1,127,947.51

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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.