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Finding the Fourth Proportional to 519,494.80, 778,853.40 and 283,104.40

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Solution

The fourth proportional to 519,494.80, 778,853.40 and 283,104.40 is: 424,444.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,494.80 : 778,853.40 = 283,104.40 : x
  2. Step 2: Convert to fraction form
    519,494.80/778,853.40 = 283,104.40/x
  3. Step 3: Cross multiply
    519,494.80x = 778,853.40 × 283,104.40
  4. Step 4: Simplify right side
    519,494.80x = 220,496,824,494.96
  5. Step 5: Solve for x
    x = 220,496,824,494.96/519,494.80
  6. Step 6: Final answer
    x = 424,444.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.