Home / 772,455.21-1,157,188.27-434,468.94

Finding the Fourth Proportional to 772,455.21, 1,157,188.27 and 434,468.94

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Solution

The fourth proportional to 772,455.21, 1,157,188.27 and 434,468.94 is: 650,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,455.21 : 1,157,188.27 = 434,468.94 : x
  2. Step 2: Convert to fraction form
    772,455.21/1,157,188.27 = 434,468.94/x
  3. Step 3: Cross multiply
    772,455.21x = 1,157,188.27 × 434,468.94
  4. Step 4: Simplify right side
    772,455.21x = 502,762,361,047.33
  5. Step 5: Solve for x
    x = 502,762,361,047.33/772,455.21
  6. Step 6: Final answer
    x = 650,862.80

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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.