Home / 389,347.60-584,021.40-264,931.60

Finding the Fourth Proportional to 389,347.60, 584,021.40 and 264,931.60

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Solution

The fourth proportional to 389,347.60, 584,021.40 and 264,931.60 is: 397,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,347.60 : 584,021.40 = 264,931.60 : x
  2. Step 2: Convert to fraction form
    389,347.60/584,021.40 = 264,931.60/x
  3. Step 3: Cross multiply
    389,347.60x = 584,021.40 × 264,931.60
  4. Step 4: Simplify right side
    389,347.60x = 154,725,723,936.24
  5. Step 5: Solve for x
    x = 154,725,723,936.24/389,347.60
  6. Step 6: Final answer
    x = 397,397.40

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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.