Home / 578,172.89-867,254.45-451,919.36

Finding the Fourth Proportional to 578,172.89, 867,254.45 and 451,919.36

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Solution

The fourth proportional to 578,172.89, 867,254.45 and 451,919.36 is: 677,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,172.89 : 867,254.45 = 451,919.36 : x
  2. Step 2: Convert to fraction form
    578,172.89/867,254.45 = 451,919.36/x
  3. Step 3: Cross multiply
    578,172.89x = 867,254.45 × 451,919.36
  4. Step 4: Simplify right side
    578,172.89x = 391,929,069,405.28
  5. Step 5: Solve for x
    x = 391,929,069,405.28/578,172.89
  6. Step 6: Final answer
    x = 677,875.22

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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.