Home / 1,928,325.40-2,661,031.40-1,057,130.28

Finding the Fourth Proportional to 1,928,325.40, 2,661,031.40 and 1,057,130.28

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Solution

The fourth proportional to 1,928,325.40, 2,661,031.40 and 1,057,130.28 is: 1,458,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,325.40 : 2,661,031.40 = 1,057,130.28 : x
  2. Step 2: Convert to fraction form
    1,928,325.40/2,661,031.40 = 1,057,130.28/x
  3. Step 3: Cross multiply
    1,928,325.40x = 2,661,031.40 × 1,057,130.28
  4. Step 4: Simplify right side
    1,928,325.40x = 2,813,056,852,266.80
  5. Step 5: Solve for x
    x = 2,813,056,852,266.80/1,928,325.40
  6. Step 6: Final answer
    x = 1,458,808.17

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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.