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Finding the Fourth Proportional to 501,963.30, 692,710.47 and 272,520.90

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Solution

The fourth proportional to 501,963.30, 692,710.47 and 272,520.90 is: 376,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,963.30 : 692,710.47 = 272,520.90 : x
  2. Step 2: Convert to fraction form
    501,963.30/692,710.47 = 272,520.90/x
  3. Step 3: Cross multiply
    501,963.30x = 692,710.47 × 272,520.90
  4. Step 4: Simplify right side
    501,963.30x = 188,778,080,723.82
  5. Step 5: Solve for x
    x = 188,778,080,723.82/501,963.30
  6. Step 6: Final answer
    x = 376,079.45

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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.