Home / 389,631.60-584,447.40-284,655.60

Finding the Fourth Proportional to 389,631.60, 584,447.40 and 284,655.60

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Solution

The fourth proportional to 389,631.60, 584,447.40 and 284,655.60 is: 426,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,631.60 : 584,447.40 = 284,655.60 : x
  2. Step 2: Convert to fraction form
    389,631.60/584,447.40 = 284,655.60/x
  3. Step 3: Cross multiply
    389,631.60x = 584,447.40 × 284,655.60
  4. Step 4: Simplify right side
    389,631.60x = 166,366,225,315.44
  5. Step 5: Solve for x
    x = 166,366,225,315.44/389,631.60
  6. Step 6: Final answer
    x = 426,983.40

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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.