Home / 1,128,768.64-1,693,411.54-489,179.76

Finding the Fourth Proportional to 1,128,768.64, 1,693,411.54 and 489,179.76

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Solution

The fourth proportional to 1,128,768.64, 1,693,411.54 and 489,179.76 is: 733,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,768.64 : 1,693,411.54 = 489,179.76 : x
  2. Step 2: Convert to fraction form
    1,128,768.64/1,693,411.54 = 489,179.76/x
  3. Step 3: Cross multiply
    1,128,768.64x = 1,693,411.54 × 489,179.76
  4. Step 4: Simplify right side
    1,128,768.64x = 828,382,650,718.43
  5. Step 5: Solve for x
    x = 828,382,650,718.43/1,128,768.64
  6. Step 6: Final answer
    x = 733,881.70

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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.