Home / 921,713.88-1,382,271.78-353,064.72

Finding the Fourth Proportional to 921,713.88, 1,382,271.78 and 353,064.72

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Solution

The fourth proportional to 921,713.88, 1,382,271.78 and 353,064.72 is: 529,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,713.88 : 1,382,271.78 = 353,064.72 : x
  2. Step 2: Convert to fraction form
    921,713.88/1,382,271.78 = 353,064.72/x
  3. Step 3: Cross multiply
    921,713.88x = 1,382,271.78 × 353,064.72
  4. Step 4: Simplify right side
    921,713.88x = 488,031,405,477.11
  5. Step 5: Solve for x
    x = 488,031,405,477.11/921,713.88
  6. Step 6: Final answer
    x = 529,482.54

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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.