Home / 745,148.29-1,116,842.37-318,559.36

Finding the Fourth Proportional to 745,148.29, 1,116,842.37 and 318,559.36

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Solution

The fourth proportional to 745,148.29, 1,116,842.37 and 318,559.36 is: 477,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,148.29 : 1,116,842.37 = 318,559.36 : x
  2. Step 2: Convert to fraction form
    745,148.29/1,116,842.37 = 318,559.36/x
  3. Step 3: Cross multiply
    745,148.29x = 1,116,842.37 × 318,559.36
  4. Step 4: Simplify right side
    745,148.29x = 355,780,590,608.08
  5. Step 5: Solve for x
    x = 355,780,590,608.08/745,148.29
  6. Step 6: Final answer
    x = 477,462.80

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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.