Home / 742,847.20-1,025,113.21-403,315.45

Finding the Fourth Proportional to 742,847.20, 1,025,113.21 and 403,315.45

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Solution

The fourth proportional to 742,847.20, 1,025,113.21 and 403,315.45 is: 556,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,847.20 : 1,025,113.21 = 403,315.45 : x
  2. Step 2: Convert to fraction form
    742,847.20/1,025,113.21 = 403,315.45/x
  3. Step 3: Cross multiply
    742,847.20x = 1,025,113.21 × 403,315.45
  4. Step 4: Simplify right side
    742,847.20x = 413,443,995,592.10
  5. Step 5: Solve for x
    x = 413,443,995,592.10/742,847.20
  6. Step 6: Final answer
    x = 556,566.67

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1.5x scale

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.