Home / 920,357.76-1,380,630.93-352,216.71

Finding the Fourth Proportional to 920,357.76, 1,380,630.93 and 352,216.71

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Solution

The fourth proportional to 920,357.76, 1,380,630.93 and 352,216.71 is: 528,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,357.76 : 1,380,630.93 = 352,216.71 : x
  2. Step 2: Convert to fraction form
    920,357.76/1,380,630.93 = 352,216.71/x
  3. Step 3: Cross multiply
    920,357.76x = 1,380,630.93 × 352,216.71
  4. Step 4: Simplify right side
    920,357.76x = 486,281,283,888.84
  5. Step 5: Solve for x
    x = 486,281,283,888.84/920,357.76
  6. Step 6: Final answer
    x = 528,361.15

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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.