Home / 891,668.71-1,337,222.26-292,490.65

Finding the Fourth Proportional to 891,668.71, 1,337,222.26 and 292,490.65

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Solution

The fourth proportional to 891,668.71, 1,337,222.26 and 292,490.65 is: 438,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,668.71 : 1,337,222.26 = 292,490.65 : x
  2. Step 2: Convert to fraction form
    891,668.71/1,337,222.26 = 292,490.65/x
  3. Step 3: Cross multiply
    891,668.71x = 1,337,222.26 × 292,490.65
  4. Step 4: Simplify right side
    891,668.71x = 391,125,008,021.87
  5. Step 5: Solve for x
    x = 391,125,008,021.87/891,668.71
  6. Step 6: Final answer
    x = 438,643.86

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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.