Home / 745,114.90-1,117,336.09-212,509.33

Finding the Fourth Proportional to 745,114.90, 1,117,336.09 and 212,509.33

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Solution

The fourth proportional to 745,114.90, 1,117,336.09 and 212,509.33 is: 318,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,114.90 : 1,117,336.09 = 212,509.33 : x
  2. Step 2: Convert to fraction form
    745,114.90/1,117,336.09 = 212,509.33/x
  3. Step 3: Cross multiply
    745,114.90x = 1,117,336.09 × 212,509.33
  4. Step 4: Simplify right side
    745,114.90x = 237,444,343,870.72
  5. Step 5: Solve for x
    x = 237,444,343,870.72/745,114.90
  6. Step 6: Final answer
    x = 318,668.09

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1.5x scale

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.