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Finding the Fourth Proportional to 668,020.60, 920,821.26 and 506,227.96

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Solution

The fourth proportional to 668,020.60, 920,821.26 and 506,227.96 is: 697,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,020.60 : 920,821.26 = 506,227.96 : x
  2. Step 2: Convert to fraction form
    668,020.60/920,821.26 = 506,227.96/x
  3. Step 3: Cross multiply
    668,020.60x = 920,821.26 × 506,227.96
  4. Step 4: Simplify right side
    668,020.60x = 466,145,467,974.43
  5. Step 5: Solve for x
    x = 466,145,467,974.43/668,020.60
  6. Step 6: Final answer
    x = 697,801.04

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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.