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Finding the Fourth Proportional to 557,220.60, 835,830.90 and 531,559.80

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Solution

The fourth proportional to 557,220.60, 835,830.90 and 531,559.80 is: 797,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,220.60 : 835,830.90 = 531,559.80 : x
  2. Step 2: Convert to fraction form
    557,220.60/835,830.90 = 531,559.80/x
  3. Step 3: Cross multiply
    557,220.60x = 835,830.90 × 531,559.80
  4. Step 4: Simplify right side
    557,220.60x = 444,294,106,037.82
  5. Step 5: Solve for x
    x = 444,294,106,037.82/557,220.60
  6. Step 6: Final answer
    x = 797,339.70

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Double scale
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Similar ratio
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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.