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Finding the Fourth Proportional to 576,005.40, 863,748.90 and 220,901.40

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Solution

The fourth proportional to 576,005.40, 863,748.90 and 220,901.40 is: 331,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,005.40 : 863,748.90 = 220,901.40 : x
  2. Step 2: Convert to fraction form
    576,005.40/863,748.90 = 220,901.40/x
  3. Step 3: Cross multiply
    576,005.40x = 863,748.90 × 220,901.40
  4. Step 4: Simplify right side
    576,005.40x = 190,803,341,258.46
  5. Step 5: Solve for x
    x = 190,803,341,258.46/576,005.40
  6. Step 6: Final answer
    x = 331,252.70

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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.