Home / 784,013.21-1,081,807.07-461,787.47

Finding the Fourth Proportional to 784,013.21, 1,081,807.07 and 461,787.47

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Solution

The fourth proportional to 784,013.21, 1,081,807.07 and 461,787.47 is: 637,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,013.21 : 1,081,807.07 = 461,787.47 : x
  2. Step 2: Convert to fraction form
    784,013.21/1,081,807.07 = 461,787.47/x
  3. Step 3: Cross multiply
    784,013.21x = 1,081,807.07 × 461,787.47
  4. Step 4: Simplify right side
    784,013.21x = 499,564,942,165.44
  5. Step 5: Solve for x
    x = 499,564,942,165.44/784,013.21
  6. Step 6: Final answer
    x = 637,189.45

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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.