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Finding the Fourth Proportional to 664,647.12, 917,208.36 and 362,841.12

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Solution

The fourth proportional to 664,647.12, 917,208.36 and 362,841.12 is: 500,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,647.12 : 917,208.36 = 362,841.12 : x
  2. Step 2: Convert to fraction form
    664,647.12/917,208.36 = 362,841.12/x
  3. Step 3: Cross multiply
    664,647.12x = 917,208.36 × 362,841.12
  4. Step 4: Simplify right side
    664,647.12x = 332,800,908,615.76
  5. Step 5: Solve for x
    x = 332,800,908,615.76/664,647.12
  6. Step 6: Final answer
    x = 500,718.20

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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.