Home / 1,313,749.76-1,812,973.86-710,137.76

Finding the Fourth Proportional to 1,313,749.76, 1,812,973.86 and 710,137.76

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Solution

The fourth proportional to 1,313,749.76, 1,812,973.86 and 710,137.76 is: 979,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,749.76 : 1,812,973.86 = 710,137.76 : x
  2. Step 2: Convert to fraction form
    1,313,749.76/1,812,973.86 = 710,137.76/x
  3. Step 3: Cross multiply
    1,313,749.76x = 1,812,973.86 × 710,137.76
  4. Step 4: Simplify right side
    1,313,749.76x = 1,287,461,186,814.08
  5. Step 5: Solve for x
    x = 1,287,461,186,814.08/1,313,749.76
  6. Step 6: Final answer
    x = 979,989.67

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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.