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Finding the Fourth Proportional to 550,463.02, 759,578.23 and 308,695.84

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Solution

The fourth proportional to 550,463.02, 759,578.23 and 308,695.84 is: 425,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,463.02 : 759,578.23 = 308,695.84 : x
  2. Step 2: Convert to fraction form
    550,463.02/759,578.23 = 308,695.84/x
  3. Step 3: Cross multiply
    550,463.02x = 759,578.23 × 308,695.84
  4. Step 4: Simplify right side
    550,463.02x = 234,478,639,755.56
  5. Step 5: Solve for x
    x = 234,478,639,755.56/550,463.02
  6. Step 6: Final answer
    x = 425,966.20

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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.