Home / 1,111,430.70-1,663,209.45-757,136.70

Finding the Fourth Proportional to 1,111,430.70, 1,663,209.45 and 757,136.70

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Solution

The fourth proportional to 1,111,430.70, 1,663,209.45 and 757,136.70 is: 1,133,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,430.70 : 1,663,209.45 = 757,136.70 : x
  2. Step 2: Convert to fraction form
    1,111,430.70/1,663,209.45 = 757,136.70/x
  3. Step 3: Cross multiply
    1,111,430.70x = 1,663,209.45 × 757,136.70
  4. Step 4: Simplify right side
    1,111,430.70x = 1,259,276,914,381.82
  5. Step 5: Solve for x
    x = 1,259,276,914,381.82/1,111,430.70
  6. Step 6: Final answer
    x = 1,133,023.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.