Home / 612,619.64-845,291.22-357,921.62

Finding the Fourth Proportional to 612,619.64, 845,291.22 and 357,921.62

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Solution

The fourth proportional to 612,619.64, 845,291.22 and 357,921.62 is: 493,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,619.64 : 845,291.22 = 357,921.62 : x
  2. Step 2: Convert to fraction form
    612,619.64/845,291.22 = 357,921.62/x
  3. Step 3: Cross multiply
    612,619.64x = 845,291.22 × 357,921.62
  4. Step 4: Simplify right side
    612,619.64x = 302,548,002,834.18
  5. Step 5: Solve for x
    x = 302,548,002,834.18/612,619.64
  6. Step 6: Final answer
    x = 493,859.46

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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.