Home / 1,020,808.80-1,408,336.64-1,019,234.16

Finding the Fourth Proportional to 1,020,808.80, 1,408,336.64 and 1,019,234.16

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Solution

The fourth proportional to 1,020,808.80, 1,408,336.64 and 1,019,234.16 is: 1,406,164.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,808.80 : 1,408,336.64 = 1,019,234.16 : x
  2. Step 2: Convert to fraction form
    1,020,808.80/1,408,336.64 = 1,019,234.16/x
  3. Step 3: Cross multiply
    1,020,808.80x = 1,408,336.64 × 1,019,234.16
  4. Step 4: Simplify right side
    1,020,808.80x = 1,435,424,812,267.62
  5. Step 5: Solve for x
    x = 1,435,424,812,267.62/1,020,808.80
  6. Step 6: Final answer
    x = 1,406,164.22

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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.