Home / 1,205,284.20-1,807,868.70-406,487.40

Finding the Fourth Proportional to 1,205,284.20, 1,807,868.70 and 406,487.40

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Solution

The fourth proportional to 1,205,284.20, 1,807,868.70 and 406,487.40 is: 609,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,284.20 : 1,807,868.70 = 406,487.40 : x
  2. Step 2: Convert to fraction form
    1,205,284.20/1,807,868.70 = 406,487.40/x
  3. Step 3: Cross multiply
    1,205,284.20x = 1,807,868.70 × 406,487.40
  4. Step 4: Simplify right side
    1,205,284.20x = 734,875,847,404.38
  5. Step 5: Solve for x
    x = 734,875,847,404.38/1,205,284.20
  6. Step 6: Final answer
    x = 609,711.67

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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.