Home / 940,709.97-1,298,178.75-510,990.42

Finding the Fourth Proportional to 940,709.97, 1,298,178.75 and 510,990.42

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Solution

The fourth proportional to 940,709.97, 1,298,178.75 and 510,990.42 is: 705,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,709.97 : 1,298,178.75 = 510,990.42 : x
  2. Step 2: Convert to fraction form
    940,709.97/1,298,178.75 = 510,990.42/x
  3. Step 3: Cross multiply
    940,709.97x = 1,298,178.75 × 510,990.42
  4. Step 4: Simplify right side
    940,709.97x = 663,356,904,697.58
  5. Step 5: Solve for x
    x = 663,356,904,697.58/940,709.97
  6. Step 6: Final answer
    x = 705,166.23

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Double scale
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1.5x scale

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.