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Finding the Fourth Proportional to 547,597.76, 755,686.08 and 309,133.76

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Solution

The fourth proportional to 547,597.76, 755,686.08 and 309,133.76 is: 426,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,597.76 : 755,686.08 = 309,133.76 : x
  2. Step 2: Convert to fraction form
    547,597.76/755,686.08 = 309,133.76/x
  3. Step 3: Cross multiply
    547,597.76x = 755,686.08 × 309,133.76
  4. Step 4: Simplify right side
    547,597.76x = 233,608,079,290.06
  5. Step 5: Solve for x
    x = 233,608,079,290.06/547,597.76
  6. Step 6: Final answer
    x = 426,605.25

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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.