Home / 769,603.20-1,154,404.80-208,637.70

Finding the Fourth Proportional to 769,603.20, 1,154,404.80 and 208,637.70

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Solution

The fourth proportional to 769,603.20, 1,154,404.80 and 208,637.70 is: 312,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,603.20 : 1,154,404.80 = 208,637.70 : x
  2. Step 2: Convert to fraction form
    769,603.20/1,154,404.80 = 208,637.70/x
  3. Step 3: Cross multiply
    769,603.20x = 1,154,404.80 × 208,637.70
  4. Step 4: Simplify right side
    769,603.20x = 240,852,362,340.96
  5. Step 5: Solve for x
    x = 240,852,362,340.96/769,603.20
  6. Step 6: Final answer
    x = 312,956.55

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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.