Home / 986,271.12-1,360,620.72-578,165.76

Finding the Fourth Proportional to 986,271.12, 1,360,620.72 and 578,165.76

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Solution

The fourth proportional to 986,271.12, 1,360,620.72 and 578,165.76 is: 797,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,271.12 : 1,360,620.72 = 578,165.76 : x
  2. Step 2: Convert to fraction form
    986,271.12/1,360,620.72 = 578,165.76/x
  3. Step 3: Cross multiply
    986,271.12x = 1,360,620.72 × 578,165.76
  4. Step 4: Simplify right side
    986,271.12x = 786,664,312,650.55
  5. Step 5: Solve for x
    x = 786,664,312,650.55/986,271.12
  6. Step 6: Final answer
    x = 797,614.67

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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.