Home / 854,125.65-1,280,605.28-405,061.65

Finding the Fourth Proportional to 854,125.65, 1,280,605.28 and 405,061.65

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Solution

The fourth proportional to 854,125.65, 1,280,605.28 and 405,061.65 is: 607,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,125.65 : 1,280,605.28 = 405,061.65 : x
  2. Step 2: Convert to fraction form
    854,125.65/1,280,605.28 = 405,061.65/x
  3. Step 3: Cross multiply
    854,125.65x = 1,280,605.28 × 405,061.65
  4. Step 4: Simplify right side
    854,125.65x = 518,724,085,690.20
  5. Step 5: Solve for x
    x = 518,724,085,690.20/854,125.65
  6. Step 6: Final answer
    x = 607,315.90

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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.