Home / 1,490,646.40-2,058,370.81-1,442,443.03

Finding the Fourth Proportional to 1,490,646.40, 2,058,370.81 and 1,442,443.03

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Solution

The fourth proportional to 1,490,646.40, 2,058,370.81 and 1,442,443.03 is: 1,991,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,646.40 : 2,058,370.81 = 1,442,443.03 : x
  2. Step 2: Convert to fraction form
    1,490,646.40/2,058,370.81 = 1,442,443.03/x
  3. Step 3: Cross multiply
    1,490,646.40x = 2,058,370.81 × 1,442,443.03
  4. Step 4: Simplify right side
    1,490,646.40x = 2,969,082,619,287.92
  5. Step 5: Solve for x
    x = 2,969,082,619,287.92/1,490,646.40
  6. Step 6: Final answer
    x = 1,991,808.80

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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.