Home / 389,736.40-583,308.60-282,816.40

Finding the Fourth Proportional to 389,736.40, 583,308.60 and 282,816.40

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Solution

The fourth proportional to 389,736.40, 583,308.60 and 282,816.40 is: 423,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,736.40 : 583,308.60 = 282,816.40 : x
  2. Step 2: Convert to fraction form
    389,736.40/583,308.60 = 282,816.40/x
  3. Step 3: Cross multiply
    389,736.40x = 583,308.60 × 282,816.40
  4. Step 4: Simplify right side
    389,736.40x = 164,969,238,341.04
  5. Step 5: Solve for x
    x = 164,969,238,341.04/389,736.40
  6. Step 6: Final answer
    x = 423,284.14

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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.