Home / 531,977.98-734,129.31-340,991.20

Finding the Fourth Proportional to 531,977.98, 734,129.31 and 340,991.20

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Solution

The fourth proportional to 531,977.98, 734,129.31 and 340,991.20 is: 470,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,977.98 : 734,129.31 = 340,991.20 : x
  2. Step 2: Convert to fraction form
    531,977.98/734,129.31 = 340,991.20/x
  3. Step 3: Cross multiply
    531,977.98x = 734,129.31 × 340,991.20
  4. Step 4: Simplify right side
    531,977.98x = 250,331,634,372.07
  5. Step 5: Solve for x
    x = 250,331,634,372.07/531,977.98
  6. Step 6: Final answer
    x = 470,567.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.