Home / 1,427,155.70-1,969,565.91-942,871.28

Finding the Fourth Proportional to 1,427,155.70, 1,969,565.91 and 942,871.28

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Solution

The fourth proportional to 1,427,155.70, 1,969,565.91 and 942,871.28 is: 1,301,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,155.70 : 1,969,565.91 = 942,871.28 : x
  2. Step 2: Convert to fraction form
    1,427,155.70/1,969,565.91 = 942,871.28/x
  3. Step 3: Cross multiply
    1,427,155.70x = 1,969,565.91 × 942,871.28
  4. Step 4: Simplify right side
    1,427,155.70x = 1,857,047,130,606.06
  5. Step 5: Solve for x
    x = 1,857,047,130,606.06/1,427,155.70
  6. Step 6: Final answer
    x = 1,301,222.52

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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.