Home / 1,549,389.15-2,138,291.06-905,016.87

Finding the Fourth Proportional to 1,549,389.15, 2,138,291.06 and 905,016.87

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Solution

The fourth proportional to 1,549,389.15, 2,138,291.06 and 905,016.87 is: 1,249,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,389.15 : 2,138,291.06 = 905,016.87 : x
  2. Step 2: Convert to fraction form
    1,549,389.15/2,138,291.06 = 905,016.87/x
  3. Step 3: Cross multiply
    1,549,389.15x = 2,138,291.06 × 905,016.87
  4. Step 4: Simplify right side
    1,549,389.15x = 1,935,189,477,745.10
  5. Step 5: Solve for x
    x = 1,935,189,477,745.10/1,549,389.15
  6. Step 6: Final answer
    x = 1,249,001.57

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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.