Home / 1,287,029.61-1,929,787.35-488,367.32

Finding the Fourth Proportional to 1,287,029.61, 1,929,787.35 and 488,367.32

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Solution

The fourth proportional to 1,287,029.61, 1,929,787.35 and 488,367.32 is: 732,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,029.61 : 1,929,787.35 = 488,367.32 : x
  2. Step 2: Convert to fraction form
    1,287,029.61/1,929,787.35 = 488,367.32/x
  3. Step 3: Cross multiply
    1,287,029.61x = 1,929,787.35 × 488,367.32
  4. Step 4: Simplify right side
    1,287,029.61x = 942,445,066,640.47
  5. Step 5: Solve for x
    x = 942,445,066,640.47/1,287,029.61
  6. Step 6: Final answer
    x = 732,263.70

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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.