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Finding the Fourth Proportional to 545,560.56, 753,218.28 and 402,070.68

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Solution

The fourth proportional to 545,560.56, 753,218.28 and 402,070.68 is: 555,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,560.56 : 753,218.28 = 402,070.68 : x
  2. Step 2: Convert to fraction form
    545,560.56/753,218.28 = 402,070.68/x
  3. Step 3: Cross multiply
    545,560.56x = 753,218.28 × 402,070.68
  4. Step 4: Simplify right side
    545,560.56x = 302,846,986,028.03
  5. Step 5: Solve for x
    x = 302,846,986,028.03/545,560.56
  6. Step 6: Final answer
    x = 555,111.58

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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.