Home / 1,064,581.85-1,595,928.21-390,508.10

Finding the Fourth Proportional to 1,064,581.85, 1,595,928.21 and 390,508.10

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Solution

The fourth proportional to 1,064,581.85, 1,595,928.21 and 390,508.10 is: 585,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,581.85 : 1,595,928.21 = 390,508.10 : x
  2. Step 2: Convert to fraction form
    1,064,581.85/1,595,928.21 = 390,508.10/x
  3. Step 3: Cross multiply
    1,064,581.85x = 1,595,928.21 × 390,508.10
  4. Step 4: Simplify right side
    1,064,581.85x = 623,222,891,760.79
  5. Step 5: Solve for x
    x = 623,222,891,760.79/1,064,581.85
  6. Step 6: Final answer
    x = 585,415.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.