Home / 1,443,201.27-1,991,482.51-862,308.71

Finding the Fourth Proportional to 1,443,201.27, 1,991,482.51 and 862,308.71

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Solution

The fourth proportional to 1,443,201.27, 1,991,482.51 and 862,308.71 is: 1,189,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,201.27 : 1,991,482.51 = 862,308.71 : x
  2. Step 2: Convert to fraction form
    1,443,201.27/1,991,482.51 = 862,308.71/x
  3. Step 3: Cross multiply
    1,443,201.27x = 1,991,482.51 × 862,308.71
  4. Step 4: Simplify right side
    1,443,201.27x = 1,717,272,704,228.25
  5. Step 5: Solve for x
    x = 1,717,272,704,228.25/1,443,201.27
  6. Step 6: Final answer
    x = 1,189,905.21

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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.