Home / 1,070,263.46-1,605,663.09-312,105

Finding the Fourth Proportional to 1,070,263.46, 1,605,663.09 and 312,105

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Solution

The fourth proportional to 1,070,263.46, 1,605,663.09 and 312,105 is: 468,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,263.46 : 1,605,663.09 = 312,105 : x
  2. Step 2: Convert to fraction form
    1,070,263.46/1,605,663.09 = 312,105/x
  3. Step 3: Cross multiply
    1,070,263.46x = 1,605,663.09 × 312,105
  4. Step 4: Simplify right side
    1,070,263.46x = 501,135,478,704.45
  5. Step 5: Solve for x
    x = 501,135,478,704.45/1,070,263.46
  6. Step 6: Final answer
    x = 468,235.63

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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.