Home / 1,138,208.02-1,570,708.06-621,950.57

Finding the Fourth Proportional to 1,138,208.02, 1,570,708.06 and 621,950.57

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Solution

The fourth proportional to 1,138,208.02, 1,570,708.06 and 621,950.57 is: 858,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,208.02 : 1,570,708.06 = 621,950.57 : x
  2. Step 2: Convert to fraction form
    1,138,208.02/1,570,708.06 = 621,950.57/x
  3. Step 3: Cross multiply
    1,138,208.02x = 1,570,708.06 × 621,950.57
  4. Step 4: Simplify right side
    1,138,208.02x = 976,902,773,220.59
  5. Step 5: Solve for x
    x = 976,902,773,220.59/1,138,208.02
  6. Step 6: Final answer
    x = 858,281.40

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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.