Home / 1,209,031.22-1,668,912.21-1,038,581.30

Finding the Fourth Proportional to 1,209,031.22, 1,668,912.21 and 1,038,581.30

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Solution

The fourth proportional to 1,209,031.22, 1,668,912.21 and 1,038,581.30 is: 1,433,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,031.22 : 1,668,912.21 = 1,038,581.30 : x
  2. Step 2: Convert to fraction form
    1,209,031.22/1,668,912.21 = 1,038,581.30/x
  3. Step 3: Cross multiply
    1,209,031.22x = 1,668,912.21 × 1,038,581.30
  4. Step 4: Simplify right side
    1,209,031.22x = 1,733,301,012,647.67
  5. Step 5: Solve for x
    x = 1,733,301,012,647.67/1,209,031.22
  6. Step 6: Final answer
    x = 1,433,628.00

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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.