Home / 1,231,612.07-1,699,142.00-715,277.70

Finding the Fourth Proportional to 1,231,612.07, 1,699,142.00 and 715,277.70

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Solution

The fourth proportional to 1,231,612.07, 1,699,142.00 and 715,277.70 is: 986,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,612.07 : 1,699,142.00 = 715,277.70 : x
  2. Step 2: Convert to fraction form
    1,231,612.07/1,699,142.00 = 715,277.70/x
  3. Step 3: Cross multiply
    1,231,612.07x = 1,699,142.00 × 715,277.70
  4. Step 4: Simplify right side
    1,231,612.07x = 1,215,358,378,157.01
  5. Step 5: Solve for x
    x = 1,215,358,378,157.01/1,231,612.07
  6. Step 6: Final answer
    x = 986,802.92

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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.