Home / 1,401,218.10-1,934,041.68-912,407.67

Finding the Fourth Proportional to 1,401,218.10, 1,934,041.68 and 912,407.67

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Solution

The fourth proportional to 1,401,218.10, 1,934,041.68 and 912,407.67 is: 1,259,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,218.10 : 1,934,041.68 = 912,407.67 : x
  2. Step 2: Convert to fraction form
    1,401,218.10/1,934,041.68 = 912,407.67/x
  3. Step 3: Cross multiply
    1,401,218.10x = 1,934,041.68 × 912,407.67
  4. Step 4: Simplify right side
    1,401,218.10x = 1,764,634,462,931.69
  5. Step 5: Solve for x
    x = 1,764,634,462,931.69/1,401,218.10
  6. Step 6: Final answer
    x = 1,259,357.46

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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.