Home / 905,678.07-1,358,433.81-306,570.75

Finding the Fourth Proportional to 905,678.07, 1,358,433.81 and 306,570.75

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Solution

The fourth proportional to 905,678.07, 1,358,433.81 and 306,570.75 is: 459,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,678.07 : 1,358,433.81 = 306,570.75 : x
  2. Step 2: Convert to fraction form
    905,678.07/1,358,433.81 = 306,570.75/x
  3. Step 3: Cross multiply
    905,678.07x = 1,358,433.81 × 306,570.75
  4. Step 4: Simplify right side
    905,678.07x = 416,456,071,957.06
  5. Step 5: Solve for x
    x = 416,456,071,957.06/905,678.07
  6. Step 6: Final answer
    x = 459,827.93

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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.