Home / 1,138,029.75-1,570,462.72-621,772.55

Finding the Fourth Proportional to 1,138,029.75, 1,570,462.72 and 621,772.55

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Solution

The fourth proportional to 1,138,029.75, 1,570,462.72 and 621,772.55 is: 858,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,029.75 : 1,570,462.72 = 621,772.55 : x
  2. Step 2: Convert to fraction form
    1,138,029.75/1,570,462.72 = 621,772.55/x
  3. Step 3: Cross multiply
    1,138,029.75x = 1,570,462.72 × 621,772.55
  4. Step 4: Simplify right side
    1,138,029.75x = 976,470,606,985.47
  5. Step 5: Solve for x
    x = 976,470,606,985.47/1,138,029.75
  6. Step 6: Final answer
    x = 858,036.10

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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.