Home / 1,438,197.51-2,156,735.78-539,148.81

Finding the Fourth Proportional to 1,438,197.51, 2,156,735.78 and 539,148.81

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Solution

The fourth proportional to 1,438,197.51, 2,156,735.78 and 539,148.81 is: 808,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,197.51 : 2,156,735.78 = 539,148.81 : x
  2. Step 2: Convert to fraction form
    1,438,197.51/2,156,735.78 = 539,148.81/x
  3. Step 3: Cross multiply
    1,438,197.51x = 2,156,735.78 × 539,148.81
  4. Step 4: Simplify right side
    1,438,197.51x = 1,162,801,529,271.42
  5. Step 5: Solve for x
    x = 1,162,801,529,271.42/1,438,197.51
  6. Step 6: Final answer
    x = 808,513.10

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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.