Home / 749,615.64-1,123,640.10-328,536.60

Finding the Fourth Proportional to 749,615.64, 1,123,640.10 and 328,536.60

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Solution

The fourth proportional to 749,615.64, 1,123,640.10 and 328,536.60 is: 492,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,615.64 : 1,123,640.10 = 328,536.60 : x
  2. Step 2: Convert to fraction form
    749,615.64/1,123,640.10 = 328,536.60/x
  3. Step 3: Cross multiply
    749,615.64x = 1,123,640.10 × 328,536.60
  4. Step 4: Simplify right side
    749,615.64x = 369,156,898,077.66
  5. Step 5: Solve for x
    x = 369,156,898,077.66/749,615.64
  6. Step 6: Final answer
    x = 492,461.57

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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.