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Finding the Fourth Proportional to 661,809.80, 992,714.70 and 476,568.20

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Solution

The fourth proportional to 661,809.80, 992,714.70 and 476,568.20 is: 714,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,809.80 : 992,714.70 = 476,568.20 : x
  2. Step 2: Convert to fraction form
    661,809.80/992,714.70 = 476,568.20/x
  3. Step 3: Cross multiply
    661,809.80x = 992,714.70 × 476,568.20
  4. Step 4: Simplify right side
    661,809.80x = 473,096,257,692.54
  5. Step 5: Solve for x
    x = 473,096,257,692.54/661,809.80
  6. Step 6: Final answer
    x = 714,852.30

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Double scale
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Similar ratio
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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.