Home / 976,399.80-1,464,038.44-520,429.33

Finding the Fourth Proportional to 976,399.80, 1,464,038.44 and 520,429.33

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Solution

The fourth proportional to 976,399.80, 1,464,038.44 and 520,429.33 is: 780,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,399.80 : 1,464,038.44 = 520,429.33 : x
  2. Step 2: Convert to fraction form
    976,399.80/1,464,038.44 = 520,429.33/x
  3. Step 3: Cross multiply
    976,399.80x = 1,464,038.44 × 520,429.33
  4. Step 4: Simplify right side
    976,399.80x = 761,928,544,423.45
  5. Step 5: Solve for x
    x = 761,928,544,423.45/976,399.80
  6. Step 6: Final answer
    x = 780,344.84

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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.