Home / 828,459.51-1,143,140.75-465,861.75

Finding the Fourth Proportional to 828,459.51, 1,143,140.75 and 465,861.75

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Solution

The fourth proportional to 828,459.51, 1,143,140.75 and 465,861.75 is: 642,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,459.51 : 1,143,140.75 = 465,861.75 : x
  2. Step 2: Convert to fraction form
    828,459.51/1,143,140.75 = 465,861.75/x
  3. Step 3: Cross multiply
    828,459.51x = 1,143,140.75 × 465,861.75
  4. Step 4: Simplify right side
    828,459.51x = 532,545,545,422.21
  5. Step 5: Solve for x
    x = 532,545,545,422.21/828,459.51
  6. Step 6: Final answer
    x = 642,814.21

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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.