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Finding the Fourth Proportional to 577,878.40, 866,820.30 and 203,901.40

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Solution

The fourth proportional to 577,878.40, 866,820.30 and 203,901.40 is: 305,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,878.40 : 866,820.30 = 203,901.40 : x
  2. Step 2: Convert to fraction form
    577,878.40/866,820.30 = 203,901.40/x
  3. Step 3: Cross multiply
    577,878.40x = 866,820.30 × 203,901.40
  4. Step 4: Simplify right side
    577,878.40x = 176,745,872,718.42
  5. Step 5: Solve for x
    x = 176,745,872,718.42/577,878.40
  6. Step 6: Final answer
    x = 305,853.05

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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.