Home / 1,137,980.41-1,570,521.53-621,812.77

Finding the Fourth Proportional to 1,137,980.41, 1,570,521.53 and 621,812.77

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Solution

The fourth proportional to 1,137,980.41, 1,570,521.53 and 621,812.77 is: 858,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,980.41 : 1,570,521.53 = 621,812.77 : x
  2. Step 2: Convert to fraction form
    1,137,980.41/1,570,521.53 = 621,812.77/x
  3. Step 3: Cross multiply
    1,137,980.41x = 1,570,521.53 × 621,812.77
  4. Step 4: Simplify right side
    1,137,980.41x = 976,570,340,542.17
  5. Step 5: Solve for x
    x = 976,570,340,542.17/1,137,980.41
  6. Step 6: Final answer
    x = 858,160.94

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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.