Home / 805,908.80-1,207,826.40-490,030.40

Finding the Fourth Proportional to 805,908.80, 1,207,826.40 and 490,030.40

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Solution

The fourth proportional to 805,908.80, 1,207,826.40 and 490,030.40 is: 734,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,908.80 : 1,207,826.40 = 490,030.40 : x
  2. Step 2: Convert to fraction form
    805,908.80/1,207,826.40 = 490,030.40/x
  3. Step 3: Cross multiply
    805,908.80x = 1,207,826.40 × 490,030.40
  4. Step 4: Simplify right side
    805,908.80x = 591,871,653,922.56
  5. Step 5: Solve for x
    x = 591,871,653,922.56/805,908.80
  6. Step 6: Final answer
    x = 734,415.18

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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.