Home / 744,530.80-1,115,478.60-719,863.60

Finding the Fourth Proportional to 744,530.80, 1,115,478.60 and 719,863.60

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Solution

The fourth proportional to 744,530.80, 1,115,478.60 and 719,863.60 is: 1,078,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,530.80 : 1,115,478.60 = 719,863.60 : x
  2. Step 2: Convert to fraction form
    744,530.80/1,115,478.60 = 719,863.60/x
  3. Step 3: Cross multiply
    744,530.80x = 1,115,478.60 × 719,863.60
  4. Step 4: Simplify right side
    744,530.80x = 802,992,440,718.96
  5. Step 5: Solve for x
    x = 802,992,440,718.96/744,530.80
  6. Step 6: Final answer
    x = 1,078,521.45

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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.