Home / 628,462.12-867,126.51-370,349.62

Finding the Fourth Proportional to 628,462.12, 867,126.51 and 370,349.62

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Solution

The fourth proportional to 628,462.12, 867,126.51 and 370,349.62 is: 510,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,462.12 : 867,126.51 = 370,349.62 : x
  2. Step 2: Convert to fraction form
    628,462.12/867,126.51 = 370,349.62/x
  3. Step 3: Cross multiply
    628,462.12x = 867,126.51 × 370,349.62
  4. Step 4: Simplify right side
    628,462.12x = 321,139,973,470.43
  5. Step 5: Solve for x
    x = 321,139,973,470.43/628,462.12
  6. Step 6: Final answer
    x = 510,993.36

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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.