Home / 867,530.40-1,299,400.38-360,554.28

Finding the Fourth Proportional to 867,530.40, 1,299,400.38 and 360,554.28

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Solution

The fourth proportional to 867,530.40, 1,299,400.38 and 360,554.28 is: 540,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,530.40 : 1,299,400.38 = 360,554.28 : x
  2. Step 2: Convert to fraction form
    867,530.40/1,299,400.38 = 360,554.28/x
  3. Step 3: Cross multiply
    867,530.40x = 1,299,400.38 × 360,554.28
  4. Step 4: Simplify right side
    867,530.40x = 468,504,368,442.63
  5. Step 5: Solve for x
    x = 468,504,368,442.63/867,530.40
  6. Step 6: Final answer
    x = 540,043.75

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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.