Home / 829,072.80-1,144,120.40-471,376.80

Finding the Fourth Proportional to 829,072.80, 1,144,120.40 and 471,376.80

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Solution

The fourth proportional to 829,072.80, 1,144,120.40 and 471,376.80 is: 650,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,072.80 : 1,144,120.40 = 471,376.80 : x
  2. Step 2: Convert to fraction form
    829,072.80/1,144,120.40 = 471,376.80/x
  3. Step 3: Cross multiply
    829,072.80x = 1,144,120.40 × 471,376.80
  4. Step 4: Simplify right side
    829,072.80x = 539,311,812,966.72
  5. Step 5: Solve for x
    x = 539,311,812,966.72/829,072.80
  6. Step 6: Final answer
    x = 650,499.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.