Home / 724,600.30-999,979.63-402,310.37

Finding the Fourth Proportional to 724,600.30, 999,979.63 and 402,310.37

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Solution

The fourth proportional to 724,600.30, 999,979.63 and 402,310.37 is: 555,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,600.30 : 999,979.63 = 402,310.37 : x
  2. Step 2: Convert to fraction form
    724,600.30/999,979.63 = 402,310.37/x
  3. Step 3: Cross multiply
    724,600.30x = 999,979.63 × 402,310.37
  4. Step 4: Simplify right side
    724,600.30x = 402,302,168,932.09
  5. Step 5: Solve for x
    x = 402,302,168,932.09/724,600.30
  6. Step 6: Final answer
    x = 555,205.64

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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.