Home / 1,205,325.07-1,807,967.67-485,649.21

Finding the Fourth Proportional to 1,205,325.07, 1,807,967.67 and 485,649.21

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Solution

The fourth proportional to 1,205,325.07, 1,807,967.67 and 485,649.21 is: 728,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,325.07 : 1,807,967.67 = 485,649.21 : x
  2. Step 2: Convert to fraction form
    1,205,325.07/1,807,967.67 = 485,649.21/x
  3. Step 3: Cross multiply
    1,205,325.07x = 1,807,967.67 × 485,649.21
  4. Step 4: Simplify right side
    1,205,325.07x = 878,038,064,594.76
  5. Step 5: Solve for x
    x = 878,038,064,594.76/1,205,325.07
  6. Step 6: Final answer
    x = 728,465.78

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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.