Home / 456,904.80-631,396.08-343,530.72

Finding the Fourth Proportional to 456,904.80, 631,396.08 and 343,530.72

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Solution

The fourth proportional to 456,904.80, 631,396.08 and 343,530.72 is: 474,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,904.80 : 631,396.08 = 343,530.72 : x
  2. Step 2: Convert to fraction form
    456,904.80/631,396.08 = 343,530.72/x
  3. Step 3: Cross multiply
    456,904.80x = 631,396.08 × 343,530.72
  4. Step 4: Simplify right side
    456,904.80x = 216,903,949,967.58
  5. Step 5: Solve for x
    x = 216,903,949,967.58/456,904.80
  6. Step 6: Final answer
    x = 474,724.60

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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.