Home / 787,905.40-1,182,732.90-488,723.80

Finding the Fourth Proportional to 787,905.40, 1,182,732.90 and 488,723.80

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Solution

The fourth proportional to 787,905.40, 1,182,732.90 and 488,723.80 is: 733,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,905.40 : 1,182,732.90 = 488,723.80 : x
  2. Step 2: Convert to fraction form
    787,905.40/1,182,732.90 = 488,723.80/x
  3. Step 3: Cross multiply
    787,905.40x = 1,182,732.90 × 488,723.80
  4. Step 4: Simplify right side
    787,905.40x = 578,029,717,273.02
  5. Step 5: Solve for x
    x = 578,029,717,273.02/787,905.40
  6. Step 6: Final answer
    x = 733,628.32

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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.