Home / 691,022.60-953,569.22-380,911.60

Finding the Fourth Proportional to 691,022.60, 953,569.22 and 380,911.60

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Solution

The fourth proportional to 691,022.60, 953,569.22 and 380,911.60 is: 525,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,022.60 : 953,569.22 = 380,911.60 : x
  2. Step 2: Convert to fraction form
    691,022.60/953,569.22 = 380,911.60/x
  3. Step 3: Cross multiply
    691,022.60x = 953,569.22 × 380,911.60
  4. Step 4: Simplify right side
    691,022.60x = 363,225,577,300.95
  5. Step 5: Solve for x
    x = 363,225,577,300.95/691,022.60
  6. Step 6: Final answer
    x = 525,634.87

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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.