Home / 1,415,009.20-2,122,513.80-706,421.20

Finding the Fourth Proportional to 1,415,009.20, 2,122,513.80 and 706,421.20

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Solution

The fourth proportional to 1,415,009.20, 2,122,513.80 and 706,421.20 is: 1,059,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,009.20 : 2,122,513.80 = 706,421.20 : x
  2. Step 2: Convert to fraction form
    1,415,009.20/2,122,513.80 = 706,421.20/x
  3. Step 3: Cross multiply
    1,415,009.20x = 2,122,513.80 × 706,421.20
  4. Step 4: Simplify right side
    1,415,009.20x = 1,499,388,745,612.56
  5. Step 5: Solve for x
    x = 1,499,388,745,612.56/1,415,009.20
  6. Step 6: Final answer
    x = 1,059,631.80

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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.