Home / 1,078,283.81-1,617,148.81-319,945.89

Finding the Fourth Proportional to 1,078,283.81, 1,617,148.81 and 319,945.89

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Solution

The fourth proportional to 1,078,283.81, 1,617,148.81 and 319,945.89 is: 479,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,283.81 : 1,617,148.81 = 319,945.89 : x
  2. Step 2: Convert to fraction form
    1,078,283.81/1,617,148.81 = 319,945.89/x
  3. Step 3: Cross multiply
    1,078,283.81x = 1,617,148.81 × 319,945.89
  4. Step 4: Simplify right side
    1,078,283.81x = 517,400,115,277.89
  5. Step 5: Solve for x
    x = 517,400,115,277.89/1,078,283.81
  6. Step 6: Final answer
    x = 479,836.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.