Home / 581,121.12-802,012.08-351,804.76

Finding the Fourth Proportional to 581,121.12, 802,012.08 and 351,804.76

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Solution

The fourth proportional to 581,121.12, 802,012.08 and 351,804.76 is: 485,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,121.12 : 802,012.08 = 351,804.76 : x
  2. Step 2: Convert to fraction form
    581,121.12/802,012.08 = 351,804.76/x
  3. Step 3: Cross multiply
    581,121.12x = 802,012.08 × 351,804.76
  4. Step 4: Simplify right side
    581,121.12x = 282,151,667,321.50
  5. Step 5: Solve for x
    x = 282,151,667,321.50/581,121.12
  6. Step 6: Final answer
    x = 485,529.88

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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.