Home / 1,013,661.51-1,399,009.98-578,079.78

Finding the Fourth Proportional to 1,013,661.51, 1,399,009.98 and 578,079.78

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Solution

The fourth proportional to 1,013,661.51, 1,399,009.98 and 578,079.78 is: 797,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,661.51 : 1,399,009.98 = 578,079.78 : x
  2. Step 2: Convert to fraction form
    1,013,661.51/1,399,009.98 = 578,079.78/x
  3. Step 3: Cross multiply
    1,013,661.51x = 1,399,009.98 × 578,079.78
  4. Step 4: Simplify right side
    1,013,661.51x = 808,739,381,456.21
  5. Step 5: Solve for x
    x = 808,739,381,456.21/1,013,661.51
  6. Step 6: Final answer
    x = 797,839.69

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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.