Home / 867,189.30-1,300,460.75-298,411.35

Finding the Fourth Proportional to 867,189.30, 1,300,460.75 and 298,411.35

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Solution

The fourth proportional to 867,189.30, 1,300,460.75 and 298,411.35 is: 447,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,189.30 : 1,300,460.75 = 298,411.35 : x
  2. Step 2: Convert to fraction form
    867,189.30/1,300,460.75 = 298,411.35/x
  3. Step 3: Cross multiply
    867,189.30x = 1,300,460.75 × 298,411.35
  4. Step 4: Simplify right side
    867,189.30x = 388,072,248,029.51
  5. Step 5: Solve for x
    x = 388,072,248,029.51/867,189.30
  6. Step 6: Final answer
    x = 447,505.81

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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.