Home / 765,693.54-1,148,540.45-315,920.25

Finding the Fourth Proportional to 765,693.54, 1,148,540.45 and 315,920.25

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Solution

The fourth proportional to 765,693.54, 1,148,540.45 and 315,920.25 is: 473,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,693.54 : 1,148,540.45 = 315,920.25 : x
  2. Step 2: Convert to fraction form
    765,693.54/1,148,540.45 = 315,920.25/x
  3. Step 3: Cross multiply
    765,693.54x = 1,148,540.45 × 315,920.25
  4. Step 4: Simplify right side
    765,693.54x = 362,847,184,519.51
  5. Step 5: Solve for x
    x = 362,847,184,519.51/765,693.54
  6. Step 6: Final answer
    x = 473,880.43

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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.