Home / 1,111,047.76-1,666,571.76-312,329.39

Finding the Fourth Proportional to 1,111,047.76, 1,666,571.76 and 312,329.39

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Solution

The fourth proportional to 1,111,047.76, 1,666,571.76 and 312,329.39 is: 468,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,047.76 : 1,666,571.76 = 312,329.39 : x
  2. Step 2: Convert to fraction form
    1,111,047.76/1,666,571.76 = 312,329.39/x
  3. Step 3: Cross multiply
    1,111,047.76x = 1,666,571.76 × 312,329.39
  4. Step 4: Simplify right side
    1,111,047.76x = 520,519,346,920.87
  5. Step 5: Solve for x
    x = 520,519,346,920.87/1,111,047.76
  6. Step 6: Final answer
    x = 468,494.12

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1.5x scale

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.