Home / 1,314,167.32-1,971,237.79-415,609.21

Finding the Fourth Proportional to 1,314,167.32, 1,971,237.79 and 415,609.21

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Solution

The fourth proportional to 1,314,167.32, 1,971,237.79 and 415,609.21 is: 623,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,167.32 : 1,971,237.79 = 415,609.21 : x
  2. Step 2: Convert to fraction form
    1,314,167.32/1,971,237.79 = 415,609.21/x
  3. Step 3: Cross multiply
    1,314,167.32x = 1,971,237.79 × 415,609.21
  4. Step 4: Simplify right side
    1,314,167.32x = 819,264,568,689.81
  5. Step 5: Solve for x
    x = 819,264,568,689.81/1,314,167.32
  6. Step 6: Final answer
    x = 623,409.64

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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.