Home / 470,281.28-648,995.92-255,421.50

Finding the Fourth Proportional to 470,281.28, 648,995.92 and 255,421.50

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Solution

The fourth proportional to 470,281.28, 648,995.92 and 255,421.50 is: 352,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,281.28 : 648,995.92 = 255,421.50 : x
  2. Step 2: Convert to fraction form
    470,281.28/648,995.92 = 255,421.50/x
  3. Step 3: Cross multiply
    470,281.28x = 648,995.92 × 255,421.50
  4. Step 4: Simplify right side
    470,281.28x = 165,767,511,380.28
  5. Step 5: Solve for x
    x = 165,767,511,380.28/470,281.28
  6. Step 6: Final answer
    x = 352,485.88

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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.