Home / 1,312,020.76-1,810,643.79-731,244.16

Finding the Fourth Proportional to 1,312,020.76, 1,810,643.79 and 731,244.16

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Solution

The fourth proportional to 1,312,020.76, 1,810,643.79 and 731,244.16 is: 1,009,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,020.76 : 1,810,643.79 = 731,244.16 : x
  2. Step 2: Convert to fraction form
    1,312,020.76/1,810,643.79 = 731,244.16/x
  3. Step 3: Cross multiply
    1,312,020.76x = 1,810,643.79 × 731,244.16
  4. Step 4: Simplify right side
    1,312,020.76x = 1,324,022,697,277.77
  5. Step 5: Solve for x
    x = 1,324,022,697,277.77/1,312,020.76
  6. Step 6: Final answer
    x = 1,009,147.67

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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.