Home / 1,615,435.30-2,228,909.19-917,560.86

Finding the Fourth Proportional to 1,615,435.30, 2,228,909.19 and 917,560.86

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Solution

The fourth proportional to 1,615,435.30, 2,228,909.19 and 917,560.86 is: 1,266,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,435.30 : 2,228,909.19 = 917,560.86 : x
  2. Step 2: Convert to fraction form
    1,615,435.30/2,228,909.19 = 917,560.86/x
  3. Step 3: Cross multiply
    1,615,435.30x = 2,228,909.19 × 917,560.86
  4. Step 4: Simplify right side
    1,615,435.30x = 2,045,159,833,238.30
  5. Step 5: Solve for x
    x = 2,045,159,833,238.30/1,615,435.30
  6. Step 6: Final answer
    x = 1,266,011.60

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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.