Home / 579,299.56-799,421.34-317,651.20

Finding the Fourth Proportional to 579,299.56, 799,421.34 and 317,651.20

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Solution

The fourth proportional to 579,299.56, 799,421.34 and 317,651.20 is: 438,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,299.56 : 799,421.34 = 317,651.20 : x
  2. Step 2: Convert to fraction form
    579,299.56/799,421.34 = 317,651.20/x
  3. Step 3: Cross multiply
    579,299.56x = 799,421.34 × 317,651.20
  4. Step 4: Simplify right side
    579,299.56x = 253,937,147,956.61
  5. Step 5: Solve for x
    x = 253,937,147,956.61/579,299.56
  6. Step 6: Final answer
    x = 438,352.05

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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.