Home / 559,928.30-772,420.20-355,646.04

Finding the Fourth Proportional to 559,928.30, 772,420.20 and 355,646.04

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Solution

The fourth proportional to 559,928.30, 772,420.20 and 355,646.04 is: 490,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,928.30 : 772,420.20 = 355,646.04 : x
  2. Step 2: Convert to fraction form
    559,928.30/772,420.20 = 355,646.04/x
  3. Step 3: Cross multiply
    559,928.30x = 772,420.20 × 355,646.04
  4. Step 4: Simplify right side
    559,928.30x = 274,708,185,346.01
  5. Step 5: Solve for x
    x = 274,708,185,346.01/559,928.30
  6. Step 6: Final answer
    x = 490,613.15

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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.