Home / 1,013,660.51-1,399,008.60-578,078.78

Finding the Fourth Proportional to 1,013,660.51, 1,399,008.60 and 578,078.78

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Solution

The fourth proportional to 1,013,660.51, 1,399,008.60 and 578,078.78 is: 797,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,660.51 : 1,399,008.60 = 578,078.78 : x
  2. Step 2: Convert to fraction form
    1,013,660.51/1,399,008.60 = 578,078.78/x
  3. Step 3: Cross multiply
    1,013,660.51x = 1,399,008.60 × 578,078.78
  4. Step 4: Simplify right side
    1,013,660.51x = 808,737,177,702.47
  5. Step 5: Solve for x
    x = 808,737,177,702.47/1,013,660.51
  6. Step 6: Final answer
    x = 797,838.30

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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.