Home / 1,308,386.16-1,805,308.29-764,416.89

Finding the Fourth Proportional to 1,308,386.16, 1,805,308.29 and 764,416.89

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Solution

The fourth proportional to 1,308,386.16, 1,805,308.29 and 764,416.89 is: 1,054,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,386.16 : 1,805,308.29 = 764,416.89 : x
  2. Step 2: Convert to fraction form
    1,308,386.16/1,805,308.29 = 764,416.89/x
  3. Step 3: Cross multiply
    1,308,386.16x = 1,805,308.29 × 764,416.89
  4. Step 4: Simplify right side
    1,308,386.16x = 1,380,008,148,533.02
  5. Step 5: Solve for x
    x = 1,380,008,148,533.02/1,308,386.16
  6. Step 6: Final answer
    x = 1,054,740.71

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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.