Home / 830,122.29-1,145,855.41-486,068.82

Finding the Fourth Proportional to 830,122.29, 1,145,855.41 and 486,068.82

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Solution

The fourth proportional to 830,122.29, 1,145,855.41 and 486,068.82 is: 670,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,122.29 : 1,145,855.41 = 486,068.82 : x
  2. Step 2: Convert to fraction form
    830,122.29/1,145,855.41 = 486,068.82/x
  3. Step 3: Cross multiply
    830,122.29x = 1,145,855.41 × 486,068.82
  4. Step 4: Simplify right side
    830,122.29x = 556,964,584,251.32
  5. Step 5: Solve for x
    x = 556,964,584,251.32/830,122.29
  6. Step 6: Final answer
    x = 670,942.81

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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.