Home / 1,287,024.73-1,929,780.08-488,362.40

Finding the Fourth Proportional to 1,287,024.73, 1,929,780.08 and 488,362.40

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Solution

The fourth proportional to 1,287,024.73, 1,929,780.08 and 488,362.40 is: 732,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,024.73 : 1,929,780.08 = 488,362.40 : x
  2. Step 2: Convert to fraction form
    1,287,024.73/1,929,780.08 = 488,362.40/x
  3. Step 3: Cross multiply
    1,287,024.73x = 1,929,780.08 × 488,362.40
  4. Step 4: Simplify right side
    1,287,024.73x = 942,432,028,318.31
  5. Step 5: Solve for x
    x = 942,432,028,318.31/1,287,024.73
  6. Step 6: Final answer
    x = 732,256.35

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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.