Home / 571,918.86-789,248.34-317,270.25

Finding the Fourth Proportional to 571,918.86, 789,248.34 and 317,270.25

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Solution

The fourth proportional to 571,918.86, 789,248.34 and 317,270.25 is: 437,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,918.86 : 789,248.34 = 317,270.25 : x
  2. Step 2: Convert to fraction form
    571,918.86/789,248.34 = 317,270.25/x
  3. Step 3: Cross multiply
    571,918.86x = 789,248.34 × 317,270.25
  4. Step 4: Simplify right side
    571,918.86x = 250,405,018,143.89
  5. Step 5: Solve for x
    x = 250,405,018,143.89/571,918.86
  6. Step 6: Final answer
    x = 437,833.12

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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.