Home / 405,002.20-607,892.10-205,547.80

Finding the Fourth Proportional to 405,002.20, 607,892.10 and 205,547.80

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Solution

The fourth proportional to 405,002.20, 607,892.10 and 205,547.80 is: 308,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,002.20 : 607,892.10 = 205,547.80 : x
  2. Step 2: Convert to fraction form
    405,002.20/607,892.10 = 205,547.80/x
  3. Step 3: Cross multiply
    405,002.20x = 607,892.10 × 205,547.80
  4. Step 4: Simplify right side
    405,002.20x = 124,950,883,792.38
  5. Step 5: Solve for x
    x = 124,950,883,792.38/405,002.20
  6. Step 6: Final answer
    x = 308,519.02

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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.