Home / 1,138,206.69-1,570,729.35-621,960.61

Finding the Fourth Proportional to 1,138,206.69, 1,570,729.35 and 621,960.61

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Solution

The fourth proportional to 1,138,206.69, 1,570,729.35 and 621,960.61 is: 858,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,206.69 : 1,570,729.35 = 621,960.61 : x
  2. Step 2: Convert to fraction form
    1,138,206.69/1,570,729.35 = 621,960.61/x
  3. Step 3: Cross multiply
    1,138,206.69x = 1,570,729.35 × 621,960.61
  4. Step 4: Simplify right side
    1,138,206.69x = 976,931,792,648.07
  5. Step 5: Solve for x
    x = 976,931,792,648.07/1,138,206.69
  6. Step 6: Final answer
    x = 858,307.90

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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.