Home / 976,400.80-1,464,039.94-520,430.34

Finding the Fourth Proportional to 976,400.80, 1,464,039.94 and 520,430.34

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Solution

The fourth proportional to 976,400.80, 1,464,039.94 and 520,430.34 is: 780,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,400.80 : 1,464,039.94 = 520,430.34 : x
  2. Step 2: Convert to fraction form
    976,400.80/1,464,039.94 = 520,430.34/x
  3. Step 3: Cross multiply
    976,400.80x = 1,464,039.94 × 520,430.34
  4. Step 4: Simplify right side
    976,400.80x = 761,930,803,747.78
  5. Step 5: Solve for x
    x = 761,930,803,747.78/976,400.80
  6. Step 6: Final answer
    x = 780,346.35

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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.