Home / 1,301,916.90-1,796,858.16-778,593.30

Finding the Fourth Proportional to 1,301,916.90, 1,796,858.16 and 778,593.30

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Solution

The fourth proportional to 1,301,916.90, 1,796,858.16 and 778,593.30 is: 1,074,586.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,916.90 : 1,796,858.16 = 778,593.30 : x
  2. Step 2: Convert to fraction form
    1,301,916.90/1,796,858.16 = 778,593.30/x
  3. Step 3: Cross multiply
    1,301,916.90x = 1,796,858.16 × 778,593.30
  4. Step 4: Simplify right side
    1,301,916.90x = 1,399,021,724,426.33
  5. Step 5: Solve for x
    x = 1,399,021,724,426.33/1,301,916.90
  6. Step 6: Final answer
    x = 1,074,586.04

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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.