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Finding the Fourth Proportional to 1,314,573.80, 1,973,415.90 and 746,407.40

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Solution

The fourth proportional to 1,314,573.80, 1,973,415.90 and 746,407.40 is: 1,120,494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,573.80 : 1,973,415.90 = 746,407.40 : x
  2. Step 2: Convert to fraction form
    1,314,573.80/1,973,415.90 = 746,407.40/x
  3. Step 3: Cross multiply
    1,314,573.80x = 1,973,415.90 × 746,407.40
  4. Step 4: Simplify right side
    1,314,573.80x = 1,472,972,231,037.66
  5. Step 5: Solve for x
    x = 1,472,972,231,037.66/1,314,573.80
  6. Step 6: Final answer
    x = 1,120,494.13

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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.