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Finding the Fourth Proportional to 547,461.40, 820,633.20 and 369,986.35

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Solution

The fourth proportional to 547,461.40, 820,633.20 and 369,986.35 is: 554,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,461.40 : 820,633.20 = 369,986.35 : x
  2. Step 2: Convert to fraction form
    547,461.40/820,633.20 = 369,986.35/x
  3. Step 3: Cross multiply
    547,461.40x = 820,633.20 × 369,986.35
  4. Step 4: Simplify right side
    547,461.40x = 303,623,082,356.82
  5. Step 5: Solve for x
    x = 303,623,082,356.82/547,461.40
  6. Step 6: Final answer
    x = 554,601.81

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1.5x scale

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.