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Finding the Fourth Proportional to 547,462.40, 820,634.70 and 369,987.35

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Solution

The fourth proportional to 547,462.40, 820,634.70 and 369,987.35 is: 554,603.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,462.40 : 820,634.70 = 369,987.35 : x
  2. Step 2: Convert to fraction form
    547,462.40/820,634.70 = 369,987.35/x
  3. Step 3: Cross multiply
    547,462.40x = 820,634.70 × 369,987.35
  4. Step 4: Simplify right side
    547,462.40x = 303,624,457,971.05
  5. Step 5: Solve for x
    x = 303,624,457,971.05/547,462.40
  6. Step 6: Final answer
    x = 554,603.31

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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.