Home / 1,143,622.89-1,578,388.59-634,489.29

Finding the Fourth Proportional to 1,143,622.89, 1,578,388.59 and 634,489.29

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Solution

The fourth proportional to 1,143,622.89, 1,578,388.59 and 634,489.29 is: 875,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,622.89 : 1,578,388.59 = 634,489.29 : x
  2. Step 2: Convert to fraction form
    1,143,622.89/1,578,388.59 = 634,489.29/x
  3. Step 3: Cross multiply
    1,143,622.89x = 1,578,388.59 × 634,489.29
  4. Step 4: Simplify right side
    1,143,622.89x = 1,001,470,655,813.20
  5. Step 5: Solve for x
    x = 1,001,470,655,813.20/1,143,622.89
  6. Step 6: Final answer
    x = 875,700.08

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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.