Home / 1,148,138.32-1,584,429.41-712,393.60

Finding the Fourth Proportional to 1,148,138.32, 1,584,429.41 and 712,393.60

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Solution

The fourth proportional to 1,148,138.32, 1,584,429.41 and 712,393.60 is: 983,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,138.32 : 1,584,429.41 = 712,393.60 : x
  2. Step 2: Convert to fraction form
    1,148,138.32/1,584,429.41 = 712,393.60/x
  3. Step 3: Cross multiply
    1,148,138.32x = 1,584,429.41 × 712,393.60
  4. Step 4: Simplify right side
    1,148,138.32x = 1,128,737,371,734.88
  5. Step 5: Solve for x
    x = 1,128,737,371,734.88/1,148,138.32
  6. Step 6: Final answer
    x = 983,102.25

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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.