Home / 389,022.12-583,533.12-122,969.40

Finding the Fourth Proportional to 389,022.12, 583,533.12 and 122,969.40

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Solution

The fourth proportional to 389,022.12, 583,533.12 and 122,969.40 is: 184,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022.12 : 583,533.12 = 122,969.40 : x
  2. Step 2: Convert to fraction form
    389,022.12/583,533.12 = 122,969.40/x
  3. Step 3: Cross multiply
    389,022.12x = 583,533.12 × 122,969.40
  4. Step 4: Simplify right side
    389,022.12x = 71,756,717,646.53
  5. Step 5: Solve for x
    x = 71,756,717,646.53/389,022.12
  6. Step 6: Final answer
    x = 184,454.08

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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.