Home / 1,465,247.80-2,197,871.70-1,213,305.40

Finding the Fourth Proportional to 1,465,247.80, 2,197,871.70 and 1,213,305.40

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Solution

The fourth proportional to 1,465,247.80, 2,197,871.70 and 1,213,305.40 is: 1,819,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465,247.80 : 2,197,871.70 = 1,213,305.40 : x
  2. Step 2: Convert to fraction form
    1,465,247.80/2,197,871.70 = 1,213,305.40/x
  3. Step 3: Cross multiply
    1,465,247.80x = 2,197,871.70 × 1,213,305.40
  4. Step 4: Simplify right side
    1,465,247.80x = 2,666,689,602,117.18
  5. Step 5: Solve for x
    x = 2,666,689,602,117.18/1,465,247.80
  6. Step 6: Final answer
    x = 1,819,958.10

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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.