Home / 382,416.48-571,945.68-340,591.20

Finding the Fourth Proportional to 382,416.48, 571,945.68 and 340,591.20

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Solution

The fourth proportional to 382,416.48, 571,945.68 and 340,591.20 is: 509,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,416.48 : 571,945.68 = 340,591.20 : x
  2. Step 2: Convert to fraction form
    382,416.48/571,945.68 = 340,591.20/x
  3. Step 3: Cross multiply
    382,416.48x = 571,945.68 × 340,591.20
  4. Step 4: Simplify right side
    382,416.48x = 194,799,665,486.02
  5. Step 5: Solve for x
    x = 194,799,665,486.02/382,416.48
  6. Step 6: Final answer
    x = 509,391.40

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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.