Home / 651,241.68-977,196.09-310,071.21

Finding the Fourth Proportional to 651,241.68, 977,196.09 and 310,071.21

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Solution

The fourth proportional to 651,241.68, 977,196.09 and 310,071.21 is: 465,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,241.68 : 977,196.09 = 310,071.21 : x
  2. Step 2: Convert to fraction form
    651,241.68/977,196.09 = 310,071.21/x
  3. Step 3: Cross multiply
    651,241.68x = 977,196.09 × 310,071.21
  4. Step 4: Simplify right side
    651,241.68x = 303,000,374,033.57
  5. Step 5: Solve for x
    x = 303,000,374,033.57/651,241.68
  6. Step 6: Final answer
    x = 465,265.64

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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.