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Finding the Fourth Proportional to 552,017.57, 761,784.62 and 306,996.91

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Solution

The fourth proportional to 552,017.57, 761,784.62 and 306,996.91 is: 423,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,017.57 : 761,784.62 = 306,996.91 : x
  2. Step 2: Convert to fraction form
    552,017.57/761,784.62 = 306,996.91/x
  3. Step 3: Cross multiply
    552,017.57x = 761,784.62 × 306,996.91
  4. Step 4: Simplify right side
    552,017.57x = 233,865,520,986.08
  5. Step 5: Solve for x
    x = 233,865,520,986.08/552,017.57
  6. Step 6: Final answer
    x = 423,655.94

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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.