Home / 756,503.80-1,134,346.10-313,316.60

Finding the Fourth Proportional to 756,503.80, 1,134,346.10 and 313,316.60

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Solution

The fourth proportional to 756,503.80, 1,134,346.10 and 313,316.60 is: 469,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,503.80 : 1,134,346.10 = 313,316.60 : x
  2. Step 2: Convert to fraction form
    756,503.80/1,134,346.10 = 313,316.60/x
  3. Step 3: Cross multiply
    756,503.80x = 1,134,346.10 × 313,316.60
  4. Step 4: Simplify right side
    756,503.80x = 355,409,463,275.26
  5. Step 5: Solve for x
    x = 355,409,463,275.26/756,503.80
  6. Step 6: Final answer
    x = 469,805.26

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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.