Home / 1,427,967.36-2,142,511.16-628,688.25

Finding the Fourth Proportional to 1,427,967.36, 2,142,511.16 and 628,688.25

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Solution

The fourth proportional to 1,427,967.36, 2,142,511.16 and 628,688.25 is: 943,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,967.36 : 2,142,511.16 = 628,688.25 : x
  2. Step 2: Convert to fraction form
    1,427,967.36/2,142,511.16 = 628,688.25/x
  3. Step 3: Cross multiply
    1,427,967.36x = 2,142,511.16 × 628,688.25
  4. Step 4: Simplify right side
    1,427,967.36x = 1,346,971,588,642.43
  5. Step 5: Solve for x
    x = 1,346,971,588,642.43/1,427,967.36
  6. Step 6: Final answer
    x = 943,278.98

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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.