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Finding the Fourth Proportional to 522,268.26, 720,675.95 and 307,395.51

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Solution

The fourth proportional to 522,268.26, 720,675.95 and 307,395.51 is: 424,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,268.26 : 720,675.95 = 307,395.51 : x
  2. Step 2: Convert to fraction form
    522,268.26/720,675.95 = 307,395.51/x
  3. Step 3: Cross multiply
    522,268.26x = 720,675.95 × 307,395.51
  4. Step 4: Simplify right side
    522,268.26x = 221,532,549,658.01
  5. Step 5: Solve for x
    x = 221,532,549,658.01/522,268.26
  6. Step 6: Final answer
    x = 424,173.87

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1.5x scale

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.