Home / 3,119,205.75-4,304,503.94-1,688,421.75

Finding the Fourth Proportional to 3,119,205.75, 4,304,503.94 and 1,688,421.75

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Solution

The fourth proportional to 3,119,205.75, 4,304,503.94 and 1,688,421.75 is: 2,330,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,205.75 : 4,304,503.94 = 1,688,421.75 : x
  2. Step 2: Convert to fraction form
    3,119,205.75/4,304,503.94 = 1,688,421.75/x
  3. Step 3: Cross multiply
    3,119,205.75x = 4,304,503.94 × 1,688,421.75
  4. Step 4: Simplify right side
    3,119,205.75x = 7,267,818,066,814.59
  5. Step 5: Solve for x
    x = 7,267,818,066,814.59/3,119,205.75
  6. Step 6: Final answer
    x = 2,330,022.02

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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.