Home / 1,012,405.40-1,520,357.70-540,013.40

Finding the Fourth Proportional to 1,012,405.40, 1,520,357.70 and 540,013.40

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Solution

The fourth proportional to 1,012,405.40, 1,520,357.70 and 540,013.40 is: 810,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,405.40 : 1,520,357.70 = 540,013.40 : x
  2. Step 2: Convert to fraction form
    1,012,405.40/1,520,357.70 = 540,013.40/x
  3. Step 3: Cross multiply
    1,012,405.40x = 1,520,357.70 × 540,013.40
  4. Step 4: Simplify right side
    1,012,405.40x = 821,013,530,793.18
  5. Step 5: Solve for x
    x = 821,013,530,793.18/1,012,405.40
  6. Step 6: Final answer
    x = 810,953.33

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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.