Home / 1,299,218.66-1,947,142.55-578,534.87

Finding the Fourth Proportional to 1,299,218.66, 1,947,142.55 and 578,534.87

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Solution

The fourth proportional to 1,299,218.66, 1,947,142.55 and 578,534.87 is: 867,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,218.66 : 1,947,142.55 = 578,534.87 : x
  2. Step 2: Convert to fraction form
    1,299,218.66/1,947,142.55 = 578,534.87/x
  3. Step 3: Cross multiply
    1,299,218.66x = 1,947,142.55 × 578,534.87
  4. Step 4: Simplify right side
    1,299,218.66x = 1,126,489,849,407.33
  5. Step 5: Solve for x
    x = 1,126,489,849,407.33/1,299,218.66
  6. Step 6: Final answer
    x = 867,051.78

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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.