Home / 784,812.84-1,083,009.06-445,299.72

Finding the Fourth Proportional to 784,812.84, 1,083,009.06 and 445,299.72

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Solution

The fourth proportional to 784,812.84, 1,083,009.06 and 445,299.72 is: 614,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,812.84 : 1,083,009.06 = 445,299.72 : x
  2. Step 2: Convert to fraction form
    784,812.84/1,083,009.06 = 445,299.72/x
  3. Step 3: Cross multiply
    784,812.84x = 1,083,009.06 × 445,299.72
  4. Step 4: Simplify right side
    784,812.84x = 482,263,631,175.46
  5. Step 5: Solve for x
    x = 482,263,631,175.46/784,812.84
  6. Step 6: Final answer
    x = 614,495.08

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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.