Home / 572,018.74-789,434.88-313,945.56

Finding the Fourth Proportional to 572,018.74, 789,434.88 and 313,945.56

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Solution

The fourth proportional to 572,018.74, 789,434.88 and 313,945.56 is: 433,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,018.74 : 789,434.88 = 313,945.56 : x
  2. Step 2: Convert to fraction form
    572,018.74/789,434.88 = 313,945.56/x
  3. Step 3: Cross multiply
    572,018.74x = 789,434.88 × 313,945.56
  4. Step 4: Simplify right side
    572,018.74x = 247,839,575,485.13
  5. Step 5: Solve for x
    x = 247,839,575,485.13/572,018.74
  6. Step 6: Final answer
    x = 433,271.78

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Double scale
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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.