Home / 486,000.49-670,681.10-271,140.60

Finding the Fourth Proportional to 486,000.49, 670,681.10 and 271,140.60

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Solution

The fourth proportional to 486,000.49, 670,681.10 and 271,140.60 is: 374,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,000.49 : 670,681.10 = 271,140.60 : x
  2. Step 2: Convert to fraction form
    486,000.49/670,681.10 = 271,140.60/x
  3. Step 3: Cross multiply
    486,000.49x = 670,681.10 × 271,140.60
  4. Step 4: Simplify right side
    486,000.49x = 181,848,872,830.25
  5. Step 5: Solve for x
    x = 181,848,872,830.25/486,000.49
  6. Step 6: Final answer
    x = 374,174.26

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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.