Home / 1,890,078.83-2,607,149.18-1,209,834.35

Finding the Fourth Proportional to 1,890,078.83, 2,607,149.18 and 1,209,834.35

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Solution

The fourth proportional to 1,890,078.83, 2,607,149.18 and 1,209,834.35 is: 1,668,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,078.83 : 2,607,149.18 = 1,209,834.35 : x
  2. Step 2: Convert to fraction form
    1,890,078.83/2,607,149.18 = 1,209,834.35/x
  3. Step 3: Cross multiply
    1,890,078.83x = 2,607,149.18 × 1,209,834.35
  4. Step 4: Simplify right side
    1,890,078.83x = 3,154,218,623,527.17
  5. Step 5: Solve for x
    x = 3,154,218,623,527.17/1,890,078.83
  6. Step 6: Final answer
    x = 1,668,829.14

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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.