Home / 725,070.46-1,000,563.28-402,800.21

Finding the Fourth Proportional to 725,070.46, 1,000,563.28 and 402,800.21

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Solution

The fourth proportional to 725,070.46, 1,000,563.28 and 402,800.21 is: 555,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,070.46 : 1,000,563.28 = 402,800.21 : x
  2. Step 2: Convert to fraction form
    725,070.46/1,000,563.28 = 402,800.21/x
  3. Step 3: Cross multiply
    725,070.46x = 1,000,563.28 × 402,800.21
  4. Step 4: Simplify right side
    725,070.46x = 403,027,097,288.29
  5. Step 5: Solve for x
    x = 403,027,097,288.29/725,070.46
  6. Step 6: Final answer
    x = 555,845.43

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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.