Home / 859,569.31-1,289,611.55-346,970.53

Finding the Fourth Proportional to 859,569.31, 1,289,611.55 and 346,970.53

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Solution

The fourth proportional to 859,569.31, 1,289,611.55 and 346,970.53 is: 520,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,569.31 : 1,289,611.55 = 346,970.53 : x
  2. Step 2: Convert to fraction form
    859,569.31/1,289,611.55 = 346,970.53/x
  3. Step 3: Cross multiply
    859,569.31x = 1,289,611.55 × 346,970.53
  4. Step 4: Simplify right side
    859,569.31x = 447,457,202,997.62
  5. Step 5: Solve for x
    x = 447,457,202,997.62/859,569.31
  6. Step 6: Final answer
    x = 520,559.77

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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.