Home / 1,285,994.40-1,928,408.40-487,010.40

Finding the Fourth Proportional to 1,285,994.40, 1,928,408.40 and 487,010.40

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Solution

The fourth proportional to 1,285,994.40, 1,928,408.40 and 487,010.40 is: 730,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,994.40 : 1,928,408.40 = 487,010.40 : x
  2. Step 2: Convert to fraction form
    1,285,994.40/1,928,408.40 = 487,010.40/x
  3. Step 3: Cross multiply
    1,285,994.40x = 1,928,408.40 × 487,010.40
  4. Step 4: Simplify right side
    1,285,994.40x = 939,154,946,247.36
  5. Step 5: Solve for x
    x = 939,154,946,247.36/1,285,994.40
  6. Step 6: Final answer
    x = 730,294.74

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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.