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Finding the Fourth Proportional to 570,915.17, 787,865.94 and 322,558.23

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Solution

The fourth proportional to 570,915.17, 787,865.94 and 322,558.23 is: 445,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,915.17 : 787,865.94 = 322,558.23 : x
  2. Step 2: Convert to fraction form
    570,915.17/787,865.94 = 322,558.23/x
  3. Step 3: Cross multiply
    570,915.17x = 787,865.94 × 322,558.23
  4. Step 4: Simplify right side
    570,915.17x = 254,132,646,038.18
  5. Step 5: Solve for x
    x = 254,132,646,038.18/570,915.17
  6. Step 6: Final answer
    x = 445,132.06

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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.