Home / 1,253,143.92-1,728,927-709,225.68

Finding the Fourth Proportional to 1,253,143.92, 1,728,927 and 709,225.68

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Solution

The fourth proportional to 1,253,143.92, 1,728,927 and 709,225.68 is: 978,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,143.92 : 1,728,927 = 709,225.68 : x
  2. Step 2: Convert to fraction form
    1,253,143.92/1,728,927 = 709,225.68/x
  3. Step 3: Cross multiply
    1,253,143.92x = 1,728,927 × 709,225.68
  4. Step 4: Simplify right side
    1,253,143.92x = 1,226,199,427,245.36
  5. Step 5: Solve for x
    x = 1,226,199,427,245.36/1,253,143.92
  6. Step 6: Final answer
    x = 978,498.49

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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.