Home / 1,438,367.64-2,156,990.53-539,319.48

Finding the Fourth Proportional to 1,438,367.64, 2,156,990.53 and 539,319.48

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Solution

The fourth proportional to 1,438,367.64, 2,156,990.53 and 539,319.48 is: 808,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,367.64 : 2,156,990.53 = 539,319.48 : x
  2. Step 2: Convert to fraction form
    1,438,367.64/2,156,990.53 = 539,319.48/x
  3. Step 3: Cross multiply
    1,438,367.64x = 2,156,990.53 × 539,319.48
  4. Step 4: Simplify right side
    1,438,367.64x = 1,163,307,011,004.52
  5. Step 5: Solve for x
    x = 1,163,307,011,004.52/1,438,367.64
  6. Step 6: Final answer
    x = 808,768.90

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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.