Home / 1,020,181.14-1,407,857.85-638,424.90

Finding the Fourth Proportional to 1,020,181.14, 1,407,857.85 and 638,424.90

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Solution

The fourth proportional to 1,020,181.14, 1,407,857.85 and 638,424.90 is: 881,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,181.14 : 1,407,857.85 = 638,424.90 : x
  2. Step 2: Convert to fraction form
    1,020,181.14/1,407,857.85 = 638,424.90/x
  3. Step 3: Cross multiply
    1,020,181.14x = 1,407,857.85 × 638,424.90
  4. Step 4: Simplify right side
    1,020,181.14x = 898,811,507,100.47
  5. Step 5: Solve for x
    x = 898,811,507,100.47/1,020,181.14
  6. Step 6: Final answer
    x = 881,031.29

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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.