Home / 1,779,120.87-2,668,281.11-818,655.17

Finding the Fourth Proportional to 1,779,120.87, 2,668,281.11 and 818,655.17

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Solution

The fourth proportional to 1,779,120.87, 2,668,281.11 and 818,655.17 is: 1,227,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,120.87 : 2,668,281.11 = 818,655.17 : x
  2. Step 2: Convert to fraction form
    1,779,120.87/2,668,281.11 = 818,655.17/x
  3. Step 3: Cross multiply
    1,779,120.87x = 2,668,281.11 × 818,655.17
  4. Step 4: Simplify right side
    1,779,120.87x = 2,184,402,125,714.84
  5. Step 5: Solve for x
    x = 2,184,402,125,714.84/1,779,120.87
  6. Step 6: Final answer
    x = 1,227,798.61

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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.