Home / 470,443.65-649,214.76-289,273.95

Finding the Fourth Proportional to 470,443.65, 649,214.76 and 289,273.95

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Solution

The fourth proportional to 470,443.65, 649,214.76 and 289,273.95 is: 399,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,443.65 : 649,214.76 = 289,273.95 : x
  2. Step 2: Convert to fraction form
    470,443.65/649,214.76 = 289,273.95/x
  3. Step 3: Cross multiply
    470,443.65x = 649,214.76 × 289,273.95
  4. Step 4: Simplify right side
    470,443.65x = 187,800,919,108.28
  5. Step 5: Solve for x
    x = 187,800,919,108.28/470,443.65
  6. Step 6: Final answer
    x = 399,199.61

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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.