Home / 867,425.95-1,300,815.33-298,646.38

Finding the Fourth Proportional to 867,425.95, 1,300,815.33 and 298,646.38

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Solution

The fourth proportional to 867,425.95, 1,300,815.33 and 298,646.38 is: 447,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,425.95 : 1,300,815.33 = 298,646.38 : x
  2. Step 2: Convert to fraction form
    867,425.95/1,300,815.33 = 298,646.38/x
  3. Step 3: Cross multiply
    867,425.95x = 1,300,815.33 × 298,646.38
  4. Step 4: Simplify right side
    867,425.95x = 388,483,789,353.01
  5. Step 5: Solve for x
    x = 388,483,789,353.01/867,425.95
  6. Step 6: Final answer
    x = 447,858.16

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1.5x scale

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.