Home / 764,665.70-1,055,237.13-438,084.47

Finding the Fourth Proportional to 764,665.70, 1,055,237.13 and 438,084.47

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Solution

The fourth proportional to 764,665.70, 1,055,237.13 and 438,084.47 is: 604,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,665.70 : 1,055,237.13 = 438,084.47 : x
  2. Step 2: Convert to fraction form
    764,665.70/1,055,237.13 = 438,084.47/x
  3. Step 3: Cross multiply
    764,665.70x = 1,055,237.13 × 438,084.47
  4. Step 4: Simplify right side
    764,665.70x = 462,283,001,458.46
  5. Step 5: Solve for x
    x = 462,283,001,458.46/764,665.70
  6. Step 6: Final answer
    x = 604,555.70

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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.