Home / 725,010.08-1,000,485.78-402,740.60

Finding the Fourth Proportional to 725,010.08, 1,000,485.78 and 402,740.60

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Solution

The fourth proportional to 725,010.08, 1,000,485.78 and 402,740.60 is: 555,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,010.08 : 1,000,485.78 = 402,740.60 : x
  2. Step 2: Convert to fraction form
    725,010.08/1,000,485.78 = 402,740.60/x
  3. Step 3: Cross multiply
    725,010.08x = 1,000,485.78 × 402,740.60
  4. Step 4: Simplify right side
    725,010.08x = 402,936,243,328.67
  5. Step 5: Solve for x
    x = 402,936,243,328.67/725,010.08
  6. Step 6: Final answer
    x = 555,766.40

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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.