Home / 832,376.40-1,148,683.44-469,815.60

Finding the Fourth Proportional to 832,376.40, 1,148,683.44 and 469,815.60

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Solution

The fourth proportional to 832,376.40, 1,148,683.44 and 469,815.60 is: 648,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,376.40 : 1,148,683.44 = 469,815.60 : x
  2. Step 2: Convert to fraction form
    832,376.40/1,148,683.44 = 469,815.60/x
  3. Step 3: Cross multiply
    832,376.40x = 1,148,683.44 × 469,815.60
  4. Step 4: Simplify right side
    832,376.40x = 539,669,399,573.66
  5. Step 5: Solve for x
    x = 539,669,399,573.66/832,376.40
  6. Step 6: Final answer
    x = 648,347.79

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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.