Home / 628,460.66-867,124.48-370,348.15

Finding the Fourth Proportional to 628,460.66, 867,124.48 and 370,348.15

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Solution

The fourth proportional to 628,460.66, 867,124.48 and 370,348.15 is: 510,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,460.66 : 867,124.48 = 370,348.15 : x
  2. Step 2: Convert to fraction form
    628,460.66/867,124.48 = 370,348.15/x
  3. Step 3: Cross multiply
    628,460.66x = 867,124.48 × 370,348.15
  4. Step 4: Simplify right side
    628,460.66x = 321,137,946,987.71
  5. Step 5: Solve for x
    x = 321,137,946,987.71/628,460.66
  6. Step 6: Final answer
    x = 510,991.33

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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.