Home / 497,811.60-746,717.40-420,051.60

Finding the Fourth Proportional to 497,811.60, 746,717.40 and 420,051.60

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Solution

The fourth proportional to 497,811.60, 746,717.40 and 420,051.60 is: 630,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,811.60 : 746,717.40 = 420,051.60 : x
  2. Step 2: Convert to fraction form
    497,811.60/746,717.40 = 420,051.60/x
  3. Step 3: Cross multiply
    497,811.60x = 746,717.40 × 420,051.60
  4. Step 4: Simplify right side
    497,811.60x = 313,659,838,617.84
  5. Step 5: Solve for x
    x = 313,659,838,617.84/497,811.60
  6. Step 6: Final answer
    x = 630,077.40

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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.