Home / 579,303.02-799,485.50-321,260.78

Finding the Fourth Proportional to 579,303.02, 799,485.50 and 321,260.78

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Solution

The fourth proportional to 579,303.02, 799,485.50 and 321,260.78 is: 443,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,303.02 : 799,485.50 = 321,260.78 : x
  2. Step 2: Convert to fraction form
    579,303.02/799,485.50 = 321,260.78/x
  3. Step 3: Cross multiply
    579,303.02x = 799,485.50 × 321,260.78
  4. Step 4: Simplify right side
    579,303.02x = 256,843,332,134.41
  5. Step 5: Solve for x
    x = 256,843,332,134.41/579,303.02
  6. Step 6: Final answer
    x = 443,366.12

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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.