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Finding the Fourth Proportional to 525,795.20, 788,692.80 and 336,838.40

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Solution

The fourth proportional to 525,795.20, 788,692.80 and 336,838.40 is: 505,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,795.20 : 788,692.80 = 336,838.40 : x
  2. Step 2: Convert to fraction form
    525,795.20/788,692.80 = 336,838.40/x
  3. Step 3: Cross multiply
    525,795.20x = 788,692.80 × 336,838.40
  4. Step 4: Simplify right side
    525,795.20x = 265,662,020,843.52
  5. Step 5: Solve for x
    x = 265,662,020,843.52/525,795.20
  6. Step 6: Final answer
    x = 505,257.60

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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.