Home / 1,320,253.84-1,979,168.28-478,602.64

Finding the Fourth Proportional to 1,320,253.84, 1,979,168.28 and 478,602.64

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Solution

The fourth proportional to 1,320,253.84, 1,979,168.28 and 478,602.64 is: 717,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,253.84 : 1,979,168.28 = 478,602.64 : x
  2. Step 2: Convert to fraction form
    1,320,253.84/1,979,168.28 = 478,602.64/x
  3. Step 3: Cross multiply
    1,320,253.84x = 1,979,168.28 × 478,602.64
  4. Step 4: Simplify right side
    1,320,253.84x = 947,235,163,812.26
  5. Step 5: Solve for x
    x = 947,235,163,812.26/1,320,253.84
  6. Step 6: Final answer
    x = 717,464.43

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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.