Home / 698,801.70-1,048,202.55-521,654.70

Finding the Fourth Proportional to 698,801.70, 1,048,202.55 and 521,654.70

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Solution

The fourth proportional to 698,801.70, 1,048,202.55 and 521,654.70 is: 782,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,801.70 : 1,048,202.55 = 521,654.70 : x
  2. Step 2: Convert to fraction form
    698,801.70/1,048,202.55 = 521,654.70/x
  3. Step 3: Cross multiply
    698,801.70x = 1,048,202.55 × 521,654.70
  4. Step 4: Simplify right side
    698,801.70x = 546,799,786,759.49
  5. Step 5: Solve for x
    x = 546,799,786,759.49/698,801.70
  6. Step 6: Final answer
    x = 782,482.05

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Double scale
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Similar ratio
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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.