Home / 1,281,277.50-1,768,009.38-708,239.76

Finding the Fourth Proportional to 1,281,277.50, 1,768,009.38 and 708,239.76

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Solution

The fourth proportional to 1,281,277.50, 1,768,009.38 and 708,239.76 is: 977,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,277.50 : 1,768,009.38 = 708,239.76 : x
  2. Step 2: Convert to fraction form
    1,281,277.50/1,768,009.38 = 708,239.76/x
  3. Step 3: Cross multiply
    1,281,277.50x = 1,768,009.38 × 708,239.76
  4. Step 4: Simplify right side
    1,281,277.50x = 1,252,174,538,968.95
  5. Step 5: Solve for x
    x = 1,252,174,538,968.95/1,281,277.50
  6. Step 6: Final answer
    x = 977,285.98

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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.