Home / 439,941.60-660,714.30-384,829.20

Finding the Fourth Proportional to 439,941.60, 660,714.30 and 384,829.20

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Solution

The fourth proportional to 439,941.60, 660,714.30 and 384,829.20 is: 577,945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,941.60 : 660,714.30 = 384,829.20 : x
  2. Step 2: Convert to fraction form
    439,941.60/660,714.30 = 384,829.20/x
  3. Step 3: Cross multiply
    439,941.60x = 660,714.30 × 384,829.20
  4. Step 4: Simplify right side
    439,941.60x = 254,262,155,497.56
  5. Step 5: Solve for x
    x = 254,262,155,497.56/439,941.60
  6. Step 6: Final answer
    x = 577,945.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.