Home / 747,300.72-1,031,266.44-407,774.64

Finding the Fourth Proportional to 747,300.72, 1,031,266.44 and 407,774.64

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Solution

The fourth proportional to 747,300.72, 1,031,266.44 and 407,774.64 is: 562,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,300.72 : 1,031,266.44 = 407,774.64 : x
  2. Step 2: Convert to fraction form
    747,300.72/1,031,266.44 = 407,774.64/x
  3. Step 3: Cross multiply
    747,300.72x = 1,031,266.44 × 407,774.64
  4. Step 4: Simplify right side
    747,300.72x = 420,524,301,315.08
  5. Step 5: Solve for x
    x = 420,524,301,315.08/747,300.72
  6. Step 6: Final answer
    x = 562,724.34

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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.