Home / 784,013.70-1,081,807.76-461,787.96

Finding the Fourth Proportional to 784,013.70, 1,081,807.76 and 461,787.96

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Solution

The fourth proportional to 784,013.70, 1,081,807.76 and 461,787.96 is: 637,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,013.70 : 1,081,807.76 = 461,787.96 : x
  2. Step 2: Convert to fraction form
    784,013.70/1,081,807.76 = 461,787.96/x
  3. Step 3: Cross multiply
    784,013.70x = 1,081,807.76 × 461,787.96
  4. Step 4: Simplify right side
    784,013.70x = 499,565,798,602.57
  5. Step 5: Solve for x
    x = 499,565,798,602.57/784,013.70
  6. Step 6: Final answer
    x = 637,190.14

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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.