Home / 1,428,680.91-1,971,580.93-775,306.94

Finding the Fourth Proportional to 1,428,680.91, 1,971,580.93 and 775,306.94

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Solution

The fourth proportional to 1,428,680.91, 1,971,580.93 and 775,306.94 is: 1,069,924.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,680.91 : 1,971,580.93 = 775,306.94 : x
  2. Step 2: Convert to fraction form
    1,428,680.91/1,971,580.93 = 775,306.94/x
  3. Step 3: Cross multiply
    1,428,680.91x = 1,971,580.93 × 775,306.94
  4. Step 4: Simplify right side
    1,428,680.91x = 1,528,580,379,275.18
  5. Step 5: Solve for x
    x = 1,528,580,379,275.18/1,428,680.91
  6. Step 6: Final answer
    x = 1,069,924.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.