Home / 1,281,689.13-1,768,696.02-708,709.71

Finding the Fourth Proportional to 1,281,689.13, 1,768,696.02 and 708,709.71

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Solution

The fourth proportional to 1,281,689.13, 1,768,696.02 and 708,709.71 is: 978,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,689.13 : 1,768,696.02 = 708,709.71 : x
  2. Step 2: Convert to fraction form
    1,281,689.13/1,768,696.02 = 708,709.71/x
  3. Step 3: Cross multiply
    1,281,689.13x = 1,768,696.02 × 708,709.71
  4. Step 4: Simplify right side
    1,281,689.13x = 1,253,492,043,412.35
  5. Step 5: Solve for x
    x = 1,253,492,043,412.35/1,281,689.13
  6. Step 6: Final answer
    x = 978,000.06

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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.