Home / 1,111,474.80-1,667,989.80-480,841.20

Finding the Fourth Proportional to 1,111,474.80, 1,667,989.80 and 480,841.20

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Solution

The fourth proportional to 1,111,474.80, 1,667,989.80 and 480,841.20 is: 721,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,474.80 : 1,667,989.80 = 480,841.20 : x
  2. Step 2: Convert to fraction form
    1,111,474.80/1,667,989.80 = 480,841.20/x
  3. Step 3: Cross multiply
    1,111,474.80x = 1,667,989.80 × 480,841.20
  4. Step 4: Simplify right side
    1,111,474.80x = 802,038,217,019.76
  5. Step 5: Solve for x
    x = 802,038,217,019.76/1,111,474.80
  6. Step 6: Final answer
    x = 721,598.20

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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.