Home / 1,347,543.80-2,021,315.70-869,246.90

Finding the Fourth Proportional to 1,347,543.80, 2,021,315.70 and 869,246.90

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Solution

The fourth proportional to 1,347,543.80, 2,021,315.70 and 869,246.90 is: 1,303,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,543.80 : 2,021,315.70 = 869,246.90 : x
  2. Step 2: Convert to fraction form
    1,347,543.80/2,021,315.70 = 869,246.90/x
  3. Step 3: Cross multiply
    1,347,543.80x = 2,021,315.70 × 869,246.90
  4. Step 4: Simplify right side
    1,347,543.80x = 1,757,022,406,146.33
  5. Step 5: Solve for x
    x = 1,757,022,406,146.33/1,347,543.80
  6. Step 6: Final answer
    x = 1,303,870.35

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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.