Home / 1,444,985.40-2,169,551.70-815,129.40

Finding the Fourth Proportional to 1,444,985.40, 2,169,551.70 and 815,129.40

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Solution

The fourth proportional to 1,444,985.40, 2,169,551.70 and 815,129.40 is: 1,223,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444,985.40 : 2,169,551.70 = 815,129.40 : x
  2. Step 2: Convert to fraction form
    1,444,985.40/2,169,551.70 = 815,129.40/x
  3. Step 3: Cross multiply
    1,444,985.40x = 2,169,551.70 × 815,129.40
  4. Step 4: Simplify right side
    1,444,985.40x = 1,768,465,375,489.98
  5. Step 5: Solve for x
    x = 1,768,465,375,489.98/1,444,985.40
  6. Step 6: Final answer
    x = 1,223,863.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.