Home / 1,243,801.56-1,865,760.66-402,419.16

Finding the Fourth Proportional to 1,243,801.56, 1,865,760.66 and 402,419.16

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Solution

The fourth proportional to 1,243,801.56, 1,865,760.66 and 402,419.16 is: 603,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,801.56 : 1,865,760.66 = 402,419.16 : x
  2. Step 2: Convert to fraction form
    1,243,801.56/1,865,760.66 = 402,419.16/x
  3. Step 3: Cross multiply
    1,243,801.56x = 1,865,760.66 × 402,419.16
  4. Step 4: Simplify right side
    1,243,801.56x = 750,817,837,558.25
  5. Step 5: Solve for x
    x = 750,817,837,558.25/1,243,801.56
  6. Step 6: Final answer
    x = 603,647.61

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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.