Home / 1,020,370.55-1,410,053.42-765,278.87

Finding the Fourth Proportional to 1,020,370.55, 1,410,053.42 and 765,278.87

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Solution

The fourth proportional to 1,020,370.55, 1,410,053.42 and 765,278.87 is: 1,057,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,370.55 : 1,410,053.42 = 765,278.87 : x
  2. Step 2: Convert to fraction form
    1,020,370.55/1,410,053.42 = 765,278.87/x
  3. Step 3: Cross multiply
    1,020,370.55x = 1,410,053.42 × 765,278.87
  4. Step 4: Simplify right side
    1,020,370.55x = 1,079,084,084,070.84
  5. Step 5: Solve for x
    x = 1,079,084,084,070.84/1,020,370.55
  6. Step 6: Final answer
    x = 1,057,541.38

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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.