Home / 389,899.20-583,927.20-264,561.60

Finding the Fourth Proportional to 389,899.20, 583,927.20 and 264,561.60

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Solution

The fourth proportional to 389,899.20, 583,927.20 and 264,561.60 is: 396,217.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,899.20 : 583,927.20 = 264,561.60 : x
  2. Step 2: Convert to fraction form
    389,899.20/583,927.20 = 264,561.60/x
  3. Step 3: Cross multiply
    389,899.20x = 583,927.20 × 264,561.60
  4. Step 4: Simplify right side
    389,899.20x = 154,484,714,315.52
  5. Step 5: Solve for x
    x = 154,484,714,315.52/389,899.20
  6. Step 6: Final answer
    x = 396,217.06

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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.