Home / 1,129,054.70-1,558,107-612,812.81

Finding the Fourth Proportional to 1,129,054.70, 1,558,107 and 612,812.81

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Solution

The fourth proportional to 1,129,054.70, 1,558,107 and 612,812.81 is: 845,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,054.70 : 1,558,107 = 612,812.81 : x
  2. Step 2: Convert to fraction form
    1,129,054.70/1,558,107 = 612,812.81/x
  3. Step 3: Cross multiply
    1,129,054.70x = 1,558,107 × 612,812.81
  4. Step 4: Simplify right side
    1,129,054.70x = 954,827,921,160.14
  5. Step 5: Solve for x
    x = 954,827,921,160.14/1,129,054.70
  6. Step 6: Final answer
    x = 845,687.92

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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.