Home / 572,011.74-789,425.22-313,938.55

Finding the Fourth Proportional to 572,011.74, 789,425.22 and 313,938.55

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Solution

The fourth proportional to 572,011.74, 789,425.22 and 313,938.55 is: 433,262.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,011.74 : 789,425.22 = 313,938.55 : x
  2. Step 2: Convert to fraction form
    572,011.74/789,425.22 = 313,938.55/x
  3. Step 3: Cross multiply
    572,011.74x = 789,425.22 × 313,938.55
  4. Step 4: Simplify right side
    572,011.74x = 247,831,011,064.28
  5. Step 5: Solve for x
    x = 247,831,011,064.28/572,011.74
  6. Step 6: Final answer
    x = 433,262.11

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.