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Finding the Fourth Proportional to 527,140.40, 790,710.60 and 242,830.40

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Solution

The fourth proportional to 527,140.40, 790,710.60 and 242,830.40 is: 364,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,140.40 : 790,710.60 = 242,830.40 : x
  2. Step 2: Convert to fraction form
    527,140.40/790,710.60 = 242,830.40/x
  3. Step 3: Cross multiply
    527,140.40x = 790,710.60 × 242,830.40
  4. Step 4: Simplify right side
    527,140.40x = 192,008,571,282.24
  5. Step 5: Solve for x
    x = 192,008,571,282.24/527,140.40
  6. Step 6: Final answer
    x = 364,245.60

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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.