Home / 687,946.56-1,032,215.52-355,755.84

Finding the Fourth Proportional to 687,946.56, 1,032,215.52 and 355,755.84

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Solution

The fourth proportional to 687,946.56, 1,032,215.52 and 355,755.84 is: 533,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,946.56 : 1,032,215.52 = 355,755.84 : x
  2. Step 2: Convert to fraction form
    687,946.56/1,032,215.52 = 355,755.84/x
  3. Step 3: Cross multiply
    687,946.56x = 1,032,215.52 × 355,755.84
  4. Step 4: Simplify right side
    687,946.56x = 367,216,699,378.64
  5. Step 5: Solve for x
    x = 367,216,699,378.64/687,946.56
  6. Step 6: Final answer
    x = 533,786.66

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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.