Home / 830,043.60-1,245,065.40-682,421.10

Finding the Fourth Proportional to 830,043.60, 1,245,065.40 and 682,421.10

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Solution

The fourth proportional to 830,043.60, 1,245,065.40 and 682,421.10 is: 1,023,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,043.60 : 1,245,065.40 = 682,421.10 : x
  2. Step 2: Convert to fraction form
    830,043.60/1,245,065.40 = 682,421.10/x
  3. Step 3: Cross multiply
    830,043.60x = 1,245,065.40 × 682,421.10
  4. Step 4: Simplify right side
    830,043.60x = 849,658,899,839.94
  5. Step 5: Solve for x
    x = 849,658,899,839.94/830,043.60
  6. Step 6: Final answer
    x = 1,023,631.65

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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.