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Finding the Fourth Proportional to 456,649.02, 684,959.40 and 216,935.48

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Solution

The fourth proportional to 456,649.02, 684,959.40 and 216,935.48 is: 325,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,649.02 : 684,959.40 = 216,935.48 : x
  2. Step 2: Convert to fraction form
    456,649.02/684,959.40 = 216,935.48/x
  3. Step 3: Cross multiply
    456,649.02x = 684,959.40 × 216,935.48
  4. Step 4: Simplify right side
    456,649.02x = 148,591,996,219.51
  5. Step 5: Solve for x
    x = 148,591,996,219.51/456,649.02
  6. Step 6: Final answer
    x = 325,396.51

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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.