Home / 787,812.80-1,182,302.40-314,837.60

Finding the Fourth Proportional to 787,812.80, 1,182,302.40 and 314,837.60

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Solution

The fourth proportional to 787,812.80, 1,182,302.40 and 314,837.60 is: 472,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,812.80 : 1,182,302.40 = 314,837.60 : x
  2. Step 2: Convert to fraction form
    787,812.80/1,182,302.40 = 314,837.60/x
  3. Step 3: Cross multiply
    787,812.80x = 1,182,302.40 × 314,837.60
  4. Step 4: Simplify right side
    787,812.80x = 372,233,250,090.24
  5. Step 5: Solve for x
    x = 372,233,250,090.24/787,812.80
  6. Step 6: Final answer
    x = 472,489.47

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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.