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Finding the Fourth Proportional to 555,030.24, 765,941.68 and 300,381.48

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Solution

The fourth proportional to 555,030.24, 765,941.68 and 300,381.48 is: 414,526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,030.24 : 765,941.68 = 300,381.48 : x
  2. Step 2: Convert to fraction form
    555,030.24/765,941.68 = 300,381.48/x
  3. Step 3: Cross multiply
    555,030.24x = 765,941.68 × 300,381.48
  4. Step 4: Simplify right side
    555,030.24x = 230,074,695,432.09
  5. Step 5: Solve for x
    x = 230,074,695,432.09/555,030.24
  6. Step 6: Final answer
    x = 414,526.41

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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.