Home / 1,181,402.40-1,771,930.80-339,866.40

Finding the Fourth Proportional to 1,181,402.40, 1,771,930.80 and 339,866.40

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Solution

The fourth proportional to 1,181,402.40, 1,771,930.80 and 339,866.40 is: 509,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,402.40 : 1,771,930.80 = 339,866.40 : x
  2. Step 2: Convert to fraction form
    1,181,402.40/1,771,930.80 = 339,866.40/x
  3. Step 3: Cross multiply
    1,181,402.40x = 1,771,930.80 × 339,866.40
  4. Step 4: Simplify right side
    1,181,402.40x = 602,219,742,045.12
  5. Step 5: Solve for x
    x = 602,219,742,045.12/1,181,402.40
  6. Step 6: Final answer
    x = 509,749.89

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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.