Home / 1,281,322.69-1,768,136.50-708,317.75

Finding the Fourth Proportional to 1,281,322.69, 1,768,136.50 and 708,317.75

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Solution

The fourth proportional to 1,281,322.69, 1,768,136.50 and 708,317.75 is: 977,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,322.69 : 1,768,136.50 = 708,317.75 : x
  2. Step 2: Convert to fraction form
    1,281,322.69/1,768,136.50 = 708,317.75/x
  3. Step 3: Cross multiply
    1,281,322.69x = 1,768,136.50 × 708,317.75
  4. Step 4: Simplify right side
    1,281,322.69x = 1,252,402,467,372.88
  5. Step 5: Solve for x
    x = 1,252,402,467,372.88/1,281,322.69
  6. Step 6: Final answer
    x = 977,429.40

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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.