Home / 439,905.20-660,030.60-173,620.40

Finding the Fourth Proportional to 439,905.20, 660,030.60 and 173,620.40

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Solution

The fourth proportional to 439,905.20, 660,030.60 and 173,620.40 is: 260,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,905.20 : 660,030.60 = 173,620.40 : x
  2. Step 2: Convert to fraction form
    439,905.20/660,030.60 = 173,620.40/x
  3. Step 3: Cross multiply
    439,905.20x = 660,030.60 × 173,620.40
  4. Step 4: Simplify right side
    439,905.20x = 114,594,776,784.24
  5. Step 5: Solve for x
    x = 114,594,776,784.24/439,905.20
  6. Step 6: Final answer
    x = 260,498.80

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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.