Home / 2,931,314.40-4,394,347.20-1,920,920.40

Finding the Fourth Proportional to 2,931,314.40, 4,394,347.20 and 1,920,920.40

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Solution

The fourth proportional to 2,931,314.40, 4,394,347.20 and 1,920,920.40 is: 2,879,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931,314.40 : 4,394,347.20 = 1,920,920.40 : x
  2. Step 2: Convert to fraction form
    2,931,314.40/4,394,347.20 = 1,920,920.40/x
  3. Step 3: Cross multiply
    2,931,314.40x = 4,394,347.20 × 1,920,920.40
  4. Step 4: Simplify right side
    2,931,314.40x = 8,441,191,181,162.88
  5. Step 5: Solve for x
    x = 8,441,191,181,162.88/2,931,314.40
  6. Step 6: Final answer
    x = 2,879,660.80

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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.