Home / 1,281,339.38-1,768,285.25-708,416.45

Finding the Fourth Proportional to 1,281,339.38, 1,768,285.25 and 708,416.45

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Solution

The fourth proportional to 1,281,339.38, 1,768,285.25 and 708,416.45 is: 977,635.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,339.38 : 1,768,285.25 = 708,416.45 : x
  2. Step 2: Convert to fraction form
    1,281,339.38/1,768,285.25 = 708,416.45/x
  3. Step 3: Cross multiply
    1,281,339.38x = 1,768,285.25 × 708,416.45
  4. Step 4: Simplify right side
    1,281,339.38x = 1,252,682,360,270.99
  5. Step 5: Solve for x
    x = 1,252,682,360,270.99/1,281,339.38
  6. Step 6: Final answer
    x = 977,635.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.