Home / 747,391.56-1,031,422.26-407,881.64

Finding the Fourth Proportional to 747,391.56, 1,031,422.26 and 407,881.64

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Solution

The fourth proportional to 747,391.56, 1,031,422.26 and 407,881.64 is: 562,888.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,391.56 : 1,031,422.26 = 407,881.64 : x
  2. Step 2: Convert to fraction form
    747,391.56/1,031,422.26 = 407,881.64/x
  3. Step 3: Cross multiply
    747,391.56x = 1,031,422.26 × 407,881.64
  4. Step 4: Simplify right side
    747,391.56x = 420,698,202,941.31
  5. Step 5: Solve for x
    x = 420,698,202,941.31/747,391.56
  6. Step 6: Final answer
    x = 562,888.62

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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.