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Finding the Fourth Proportional to 768,825.72, 1,060,918.74 and 446,483.16

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Solution

The fourth proportional to 768,825.72, 1,060,918.74 and 446,483.16 is: 616,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,825.72 : 1,060,918.74 = 446,483.16 : x
  2. Step 2: Convert to fraction form
    768,825.72/1,060,918.74 = 446,483.16/x
  3. Step 3: Cross multiply
    768,825.72x = 1,060,918.74 × 446,483.16
  4. Step 4: Simplify right side
    768,825.72x = 473,682,351,538.42
  5. Step 5: Solve for x
    x = 473,682,351,538.42/768,825.72
  6. Step 6: Final answer
    x = 616,111.48

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1.5x scale

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.