Home / 763,339.20-1,145,008.80-658,276.80

Finding the Fourth Proportional to 763,339.20, 1,145,008.80 and 658,276.80

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Solution

The fourth proportional to 763,339.20, 1,145,008.80 and 658,276.80 is: 987,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,339.20 : 1,145,008.80 = 658,276.80 : x
  2. Step 2: Convert to fraction form
    763,339.20/1,145,008.80 = 658,276.80/x
  3. Step 3: Cross multiply
    763,339.20x = 1,145,008.80 × 658,276.80
  4. Step 4: Simplify right side
    763,339.20x = 753,732,728,835.84
  5. Step 5: Solve for x
    x = 753,732,728,835.84/763,339.20
  6. Step 6: Final answer
    x = 987,415.20

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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.