Home / 1,385,733.49-2,077,806.53-425,939.38

Finding the Fourth Proportional to 1,385,733.49, 2,077,806.53 and 425,939.38

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Solution

The fourth proportional to 1,385,733.49, 2,077,806.53 and 425,939.38 is: 638,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,733.49 : 2,077,806.53 = 425,939.38 : x
  2. Step 2: Convert to fraction form
    1,385,733.49/2,077,806.53 = 425,939.38/x
  3. Step 3: Cross multiply
    1,385,733.49x = 2,077,806.53 × 425,939.38
  4. Step 4: Simplify right side
    1,385,733.49x = 885,019,621,018.48
  5. Step 5: Solve for x
    x = 885,019,621,018.48/1,385,733.49
  6. Step 6: Final answer
    x = 638,665.10

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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.