Home / 776,728.38-1,072,215.51-522,227.10

Finding the Fourth Proportional to 776,728.38, 1,072,215.51 and 522,227.10

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Solution

The fourth proportional to 776,728.38, 1,072,215.51 and 522,227.10 is: 720,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,728.38 : 1,072,215.51 = 522,227.10 : x
  2. Step 2: Convert to fraction form
    776,728.38/1,072,215.51 = 522,227.10/x
  3. Step 3: Cross multiply
    776,728.38x = 1,072,215.51 × 522,227.10
  4. Step 4: Simplify right side
    776,728.38x = 559,939,996,362.32
  5. Step 5: Solve for x
    x = 559,939,996,362.32/776,728.38
  6. Step 6: Final answer
    x = 720,895.50

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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.