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Finding the Fourth Proportional to 526.67, 787.07 and 472.47

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Solution

The fourth proportional to 526.67, 787.07 and 472.47 is: 706.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.67 : 787.07 = 472.47 : x
  2. Step 2: Convert to fraction form
    526.67/787.07 = 472.47/x
  3. Step 3: Cross multiply
    526.67x = 787.07 × 472.47
  4. Step 4: Simplify right side
    526.67x = 371,865.19
  5. Step 5: Solve for x
    x = 371,865.19/526.67
  6. Step 6: Final answer
    x = 706.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.