Home / 931,980.65-1,397,968.63-258,059.71

Finding the Fourth Proportional to 931,980.65, 1,397,968.63 and 258,059.71

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Solution

The fourth proportional to 931,980.65, 1,397,968.63 and 258,059.71 is: 387,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,980.65 : 1,397,968.63 = 258,059.71 : x
  2. Step 2: Convert to fraction form
    931,980.65/1,397,968.63 = 258,059.71/x
  3. Step 3: Cross multiply
    931,980.65x = 1,397,968.63 × 258,059.71
  4. Step 4: Simplify right side
    931,980.65x = 360,759,375,106.83
  5. Step 5: Solve for x
    x = 360,759,375,106.83/931,980.65
  6. Step 6: Final answer
    x = 387,088.91

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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.