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Finding the Fourth Proportional to 567,283.47, 782,851.31 and 309,160.47

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Solution

The fourth proportional to 567,283.47, 782,851.31 and 309,160.47 is: 426,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,283.47 : 782,851.31 = 309,160.47 : x
  2. Step 2: Convert to fraction form
    567,283.47/782,851.31 = 309,160.47/x
  3. Step 3: Cross multiply
    567,283.47x = 782,851.31 × 309,160.47
  4. Step 4: Simplify right side
    567,283.47x = 242,026,678,939.72
  5. Step 5: Solve for x
    x = 242,026,678,939.72/567,283.47
  6. Step 6: Final answer
    x = 426,641.51

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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.