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Finding the Fourth Proportional to 548,387.08, 756,768.90 and 306,666.88

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Solution

The fourth proportional to 548,387.08, 756,768.90 and 306,666.88 is: 423,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,387.08 : 756,768.90 = 306,666.88 : x
  2. Step 2: Convert to fraction form
    548,387.08/756,768.90 = 306,666.88/x
  3. Step 3: Cross multiply
    548,387.08x = 756,768.90 × 306,666.88
  4. Step 4: Simplify right side
    548,387.08x = 232,075,957,444.03
  5. Step 5: Solve for x
    x = 232,075,957,444.03/548,387.08
  6. Step 6: Final answer
    x = 423,197.35

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1.5x scale

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.