Home / 897,514.07-1,238,567.61-489,615.76

Finding the Fourth Proportional to 897,514.07, 1,238,567.61 and 489,615.76

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Solution

The fourth proportional to 897,514.07, 1,238,567.61 and 489,615.76 is: 675,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,514.07 : 1,238,567.61 = 489,615.76 : x
  2. Step 2: Convert to fraction form
    897,514.07/1,238,567.61 = 489,615.76/x
  3. Step 3: Cross multiply
    897,514.07x = 1,238,567.61 × 489,615.76
  4. Step 4: Simplify right side
    897,514.07x = 606,422,223,229.74
  5. Step 5: Solve for x
    x = 606,422,223,229.74/897,514.07
  6. Step 6: Final answer
    x = 675,668.77

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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.