Home / 642,977.51-963,862.76-216,214.88

Finding the Fourth Proportional to 642,977.51, 963,862.76 and 216,214.88

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Solution

The fourth proportional to 642,977.51, 963,862.76 and 216,214.88 is: 324,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,977.51 : 963,862.76 = 216,214.88 : x
  2. Step 2: Convert to fraction form
    642,977.51/963,862.76 = 216,214.88/x
  3. Step 3: Cross multiply
    642,977.51x = 963,862.76 × 216,214.88
  4. Step 4: Simplify right side
    642,977.51x = 208,401,465,089.48
  5. Step 5: Solve for x
    x = 208,401,465,089.48/642,977.51
  6. Step 6: Final answer
    x = 324,119.37

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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.