Home / 642,268.45-886,424.88-370,283.22

Finding the Fourth Proportional to 642,268.45, 886,424.88 and 370,283.22

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Solution

The fourth proportional to 642,268.45, 886,424.88 and 370,283.22 is: 511,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,268.45 : 886,424.88 = 370,283.22 : x
  2. Step 2: Convert to fraction form
    642,268.45/886,424.88 = 370,283.22/x
  3. Step 3: Cross multiply
    642,268.45x = 886,424.88 × 370,283.22
  4. Step 4: Simplify right side
    642,268.45x = 328,228,258,854.51
  5. Step 5: Solve for x
    x = 328,228,258,854.51/642,268.45
  6. Step 6: Final answer
    x = 511,045.28

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1.5x scale

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.