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Finding the Fourth Proportional to 550,000.88, 758,994.16 and 308,283.04

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Solution

The fourth proportional to 550,000.88, 758,994.16 and 308,283.04 is: 425,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,000.88 : 758,994.16 = 308,283.04 : x
  2. Step 2: Convert to fraction form
    550,000.88/758,994.16 = 308,283.04/x
  3. Step 3: Cross multiply
    550,000.88x = 758,994.16 × 308,283.04
  4. Step 4: Simplify right side
    550,000.88x = 233,985,026,987.05
  5. Step 5: Solve for x
    x = 233,985,026,987.05/550,000.88
  6. Step 6: Final answer
    x = 425,426.64

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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.