Home / 579,423.93-799,606.80-321,319.05

Finding the Fourth Proportional to 579,423.93, 799,606.80 and 321,319.05

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Solution

The fourth proportional to 579,423.93, 799,606.80 and 321,319.05 is: 443,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,423.93 : 799,606.80 = 321,319.05 : x
  2. Step 2: Convert to fraction form
    579,423.93/799,606.80 = 321,319.05/x
  3. Step 3: Cross multiply
    579,423.93x = 799,606.80 × 321,319.05
  4. Step 4: Simplify right side
    579,423.93x = 256,928,897,349.54
  5. Step 5: Solve for x
    x = 256,928,897,349.54/579,423.93
  6. Step 6: Final answer
    x = 443,421.27

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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.