Home / 829,047.80-1,243,878.90-330,769.40

Finding the Fourth Proportional to 829,047.80, 1,243,878.90 and 330,769.40

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Solution

The fourth proportional to 829,047.80, 1,243,878.90 and 330,769.40 is: 496,276.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,047.80 : 1,243,878.90 = 330,769.40 : x
  2. Step 2: Convert to fraction form
    829,047.80/1,243,878.90 = 330,769.40/x
  3. Step 3: Cross multiply
    829,047.80x = 1,243,878.90 × 330,769.40
  4. Step 4: Simplify right side
    829,047.80x = 411,437,077,425.66
  5. Step 5: Solve for x
    x = 411,437,077,425.66/829,047.80
  6. Step 6: Final answer
    x = 496,276.67

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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.