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Finding the Fourth Proportional to 526,763.72, 726,807.47 and 320,027.96

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Solution

The fourth proportional to 526,763.72, 726,807.47 and 320,027.96 is: 441,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,763.72 : 726,807.47 = 320,027.96 : x
  2. Step 2: Convert to fraction form
    526,763.72/726,807.47 = 320,027.96/x
  3. Step 3: Cross multiply
    526,763.72x = 726,807.47 × 320,027.96
  4. Step 4: Simplify right side
    526,763.72x = 232,598,712,153.74
  5. Step 5: Solve for x
    x = 232,598,712,153.74/526,763.72
  6. Step 6: Final answer
    x = 441,561.75

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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.