Home / 1,098,917.16-1,516,510.35-640,346.31

Finding the Fourth Proportional to 1,098,917.16, 1,516,510.35 and 640,346.31

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Solution

The fourth proportional to 1,098,917.16, 1,516,510.35 and 640,346.31 is: 883,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,917.16 : 1,516,510.35 = 640,346.31 : x
  2. Step 2: Convert to fraction form
    1,098,917.16/1,516,510.35 = 640,346.31/x
  3. Step 3: Cross multiply
    1,098,917.16x = 1,516,510.35 × 640,346.31
  4. Step 4: Simplify right side
    1,098,917.16x = 971,091,809,163.52
  5. Step 5: Solve for x
    x = 971,091,809,163.52/1,098,917.16
  6. Step 6: Final answer
    x = 883,680.63

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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.