Home / 1,408,502.80-1,943,668.20-864,528.40

Finding the Fourth Proportional to 1,408,502.80, 1,943,668.20 and 864,528.40

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Solution

The fourth proportional to 1,408,502.80, 1,943,668.20 and 864,528.40 is: 1,193,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,502.80 : 1,943,668.20 = 864,528.40 : x
  2. Step 2: Convert to fraction form
    1,408,502.80/1,943,668.20 = 864,528.40/x
  3. Step 3: Cross multiply
    1,408,502.80x = 1,943,668.20 × 864,528.40
  4. Step 4: Simplify right side
    1,408,502.80x = 1,680,356,359,076.88
  5. Step 5: Solve for x
    x = 1,680,356,359,076.88/1,408,502.80
  6. Step 6: Final answer
    x = 1,193,008.89

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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.