Home / 389,721.70-584,582.55-366,102.10

Finding the Fourth Proportional to 389,721.70, 584,582.55 and 366,102.10

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Solution

The fourth proportional to 389,721.70, 584,582.55 and 366,102.10 is: 549,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,721.70 : 584,582.55 = 366,102.10 : x
  2. Step 2: Convert to fraction form
    389,721.70/584,582.55 = 366,102.10/x
  3. Step 3: Cross multiply
    389,721.70x = 584,582.55 × 366,102.10
  4. Step 4: Simplify right side
    389,721.70x = 214,016,899,178.36
  5. Step 5: Solve for x
    x = 214,016,899,178.36/389,721.70
  6. Step 6: Final answer
    x = 549,153.15

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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.