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Finding the Fourth Proportional to 557,244.73, 769,006.66 and 315,520.84

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Solution

The fourth proportional to 557,244.73, 769,006.66 and 315,520.84 is: 435,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,244.73 : 769,006.66 = 315,520.84 : x
  2. Step 2: Convert to fraction form
    557,244.73/769,006.66 = 315,520.84/x
  3. Step 3: Cross multiply
    557,244.73x = 769,006.66 × 315,520.84
  4. Step 4: Simplify right side
    557,244.73x = 242,637,623,483.76
  5. Step 5: Solve for x
    x = 242,637,623,483.76/557,244.73
  6. Step 6: Final answer
    x = 435,423.81

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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.