Home / 1,590,284.21-2,385,415.37-643,641.26

Finding the Fourth Proportional to 1,590,284.21, 2,385,415.37 and 643,641.26

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Solution

The fourth proportional to 1,590,284.21, 2,385,415.37 and 643,641.26 is: 965,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,284.21 : 2,385,415.37 = 643,641.26 : x
  2. Step 2: Convert to fraction form
    1,590,284.21/2,385,415.37 = 643,641.26/x
  3. Step 3: Cross multiply
    1,590,284.21x = 2,385,415.37 × 643,641.26
  4. Step 4: Simplify right side
    1,590,284.21x = 1,535,351,761,942.81
  5. Step 5: Solve for x
    x = 1,535,351,761,942.81/1,590,284.21
  6. Step 6: Final answer
    x = 965,457.46

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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.