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Finding the Fourth Proportional to 1,312,614, 1,811,408.04 and 709,002

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Solution

The fourth proportional to 1,312,614, 1,811,408.04 and 709,002 is: 978,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,614 : 1,811,408.04 = 709,002 : x
  2. Step 2: Convert to fraction form
    1,312,614/1,811,408.04 = 709,002/x
  3. Step 3: Cross multiply
    1,312,614x = 1,811,408.04 × 709,002
  4. Step 4: Simplify right side
    1,312,614x = 1,284,291,923,176.08
  5. Step 5: Solve for x
    x = 1,284,291,923,176.08/1,312,614
  6. Step 6: Final answer
    x = 978,423.15

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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.