Home / 858,847.65-1,287,742.50-290,175.03

Finding the Fourth Proportional to 858,847.65, 1,287,742.50 and 290,175.03

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Solution

The fourth proportional to 858,847.65, 1,287,742.50 and 290,175.03 is: 435,083.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,847.65 : 1,287,742.50 = 290,175.03 : x
  2. Step 2: Convert to fraction form
    858,847.65/1,287,742.50 = 290,175.03/x
  3. Step 3: Cross multiply
    858,847.65x = 1,287,742.50 × 290,175.03
  4. Step 4: Simplify right side
    858,847.65x = 373,670,718,569.78
  5. Step 5: Solve for x
    x = 373,670,718,569.78/858,847.65
  6. Step 6: Final answer
    x = 435,083.82

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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.