Home / 1,347,319.13-2,021,311.60-400,685.90

Finding the Fourth Proportional to 1,347,319.13, 2,021,311.60 and 400,685.90

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Solution

The fourth proportional to 1,347,319.13, 2,021,311.60 and 400,685.90 is: 601,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,319.13 : 2,021,311.60 = 400,685.90 : x
  2. Step 2: Convert to fraction form
    1,347,319.13/2,021,311.60 = 400,685.90/x
  3. Step 3: Cross multiply
    1,347,319.13x = 2,021,311.60 × 400,685.90
  4. Step 4: Simplify right side
    1,347,319.13x = 809,911,046,518.17
  5. Step 5: Solve for x
    x = 809,911,046,518.17/1,347,319.13
  6. Step 6: Final answer
    x = 601,127.85

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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.