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Finding the Fourth Proportional to 557,244.23, 769,005.98 and 315,520.34

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Solution

The fourth proportional to 557,244.23, 769,005.98 and 315,520.34 is: 435,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,244.23 : 769,005.98 = 315,520.34 : x
  2. Step 2: Convert to fraction form
    557,244.23/769,005.98 = 315,520.34/x
  3. Step 3: Cross multiply
    557,244.23x = 769,005.98 × 315,520.34
  4. Step 4: Simplify right side
    557,244.23x = 242,637,022,849.00
  5. Step 5: Solve for x
    x = 242,637,022,849.00/557,244.23
  6. Step 6: Final answer
    x = 435,423.13

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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.