Home / 1,407,672.40-2,111,488.80-342,716.80

Finding the Fourth Proportional to 1,407,672.40, 2,111,488.80 and 342,716.80

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Solution

The fourth proportional to 1,407,672.40, 2,111,488.80 and 342,716.80 is: 514,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,672.40 : 2,111,488.80 = 342,716.80 : x
  2. Step 2: Convert to fraction form
    1,407,672.40/2,111,488.80 = 342,716.80/x
  3. Step 3: Cross multiply
    1,407,672.40x = 2,111,488.80 × 342,716.80
  4. Step 4: Simplify right side
    1,407,672.40x = 723,642,684,771.84
  5. Step 5: Solve for x
    x = 723,642,684,771.84/1,407,672.40
  6. Step 6: Final answer
    x = 514,070.38

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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.