Home / 389,051.94-583,577.85-300,434.70

Finding the Fourth Proportional to 389,051.94, 583,577.85 and 300,434.70

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Solution

The fourth proportional to 389,051.94, 583,577.85 and 300,434.70 is: 450,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,051.94 : 583,577.85 = 300,434.70 : x
  2. Step 2: Convert to fraction form
    389,051.94/583,577.85 = 300,434.70/x
  3. Step 3: Cross multiply
    389,051.94x = 583,577.85 × 300,434.70
  4. Step 4: Simplify right side
    389,051.94x = 175,327,036,291.40
  5. Step 5: Solve for x
    x = 175,327,036,291.40/389,051.94
  6. Step 6: Final answer
    x = 450,652.00

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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.