Home / 1,095,938.80-1,642,871.40-647,004.40

Finding the Fourth Proportional to 1,095,938.80, 1,642,871.40 and 647,004.40

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Solution

The fourth proportional to 1,095,938.80, 1,642,871.40 and 647,004.40 is: 969,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,938.80 : 1,642,871.40 = 647,004.40 : x
  2. Step 2: Convert to fraction form
    1,095,938.80/1,642,871.40 = 647,004.40/x
  3. Step 3: Cross multiply
    1,095,938.80x = 1,642,871.40 × 647,004.40
  4. Step 4: Simplify right side
    1,095,938.80x = 1,062,945,024,434.16
  5. Step 5: Solve for x
    x = 1,062,945,024,434.16/1,095,938.80
  6. Step 6: Final answer
    x = 969,894.51

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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.