Home / 1,313,124.67-1,812,111.51-709,512.67

Finding the Fourth Proportional to 1,313,124.67, 1,812,111.51 and 709,512.67

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Solution

The fourth proportional to 1,313,124.67, 1,812,111.51 and 709,512.67 is: 979,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,124.67 : 1,812,111.51 = 709,512.67 : x
  2. Step 2: Convert to fraction form
    1,313,124.67/1,812,111.51 = 709,512.67/x
  3. Step 3: Cross multiply
    1,313,124.67x = 1,812,111.51 × 709,512.67
  4. Step 4: Simplify right side
    1,313,124.67x = 1,285,716,075,797.83
  5. Step 5: Solve for x
    x = 1,285,716,075,797.83/1,313,124.67
  6. Step 6: Final answer
    x = 979,127.20

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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.