Home / 869,620.88-1,200,089.22-525,409.04

Finding the Fourth Proportional to 869,620.88, 1,200,089.22 and 525,409.04

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Solution

The fourth proportional to 869,620.88, 1,200,089.22 and 525,409.04 is: 725,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,620.88 : 1,200,089.22 = 525,409.04 : x
  2. Step 2: Convert to fraction form
    869,620.88/1,200,089.22 = 525,409.04/x
  3. Step 3: Cross multiply
    869,620.88x = 1,200,089.22 × 525,409.04
  4. Step 4: Simplify right side
    869,620.88x = 630,537,724,994.55
  5. Step 5: Solve for x
    x = 630,537,724,994.55/869,620.88
  6. Step 6: Final answer
    x = 725,071.97

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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.