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Finding the Fourth Proportional to 570,317.49, 787,213.35 and 328,761.54

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Solution

The fourth proportional to 570,317.49, 787,213.35 and 328,761.54 is: 453,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,317.49 : 787,213.35 = 328,761.54 : x
  2. Step 2: Convert to fraction form
    570,317.49/787,213.35 = 328,761.54/x
  3. Step 3: Cross multiply
    570,317.49x = 787,213.35 × 328,761.54
  4. Step 4: Simplify right side
    570,317.49x = 258,805,473,254.56
  5. Step 5: Solve for x
    x = 258,805,473,254.56/570,317.49
  6. Step 6: Final answer
    x = 453,791.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.