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Finding the Fourth Proportional to 642,350.19, 963,450.22 and 258,083.47

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Solution

The fourth proportional to 642,350.19, 963,450.22 and 258,083.47 is: 387,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,350.19 : 963,450.22 = 258,083.47 : x
  2. Step 2: Convert to fraction form
    642,350.19/963,450.22 = 258,083.47/x
  3. Step 3: Cross multiply
    642,350.19x = 963,450.22 × 258,083.47
  4. Step 4: Simplify right side
    642,350.19x = 248,650,572,896.03
  5. Step 5: Solve for x
    x = 248,650,572,896.03/642,350.19
  6. Step 6: Final answer
    x = 387,095.04

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1.5x scale

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.