Home / 815,317.33-1,223,457.14-310,303.50

Finding the Fourth Proportional to 815,317.33, 1,223,457.14 and 310,303.50

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Solution

The fourth proportional to 815,317.33, 1,223,457.14 and 310,303.50 is: 465,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,317.33 : 1,223,457.14 = 310,303.50 : x
  2. Step 2: Convert to fraction form
    815,317.33/1,223,457.14 = 310,303.50/x
  3. Step 3: Cross multiply
    815,317.33x = 1,223,457.14 × 310,303.50
  4. Step 4: Simplify right side
    815,317.33x = 379,643,032,641.99
  5. Step 5: Solve for x
    x = 379,643,032,641.99/815,317.33
  6. Step 6: Final answer
    x = 465,638.37

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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.