Home / 724,797.81-1,000,254.18-402,509.34

Finding the Fourth Proportional to 724,797.81, 1,000,254.18 and 402,509.34

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Solution

The fourth proportional to 724,797.81, 1,000,254.18 and 402,509.34 is: 555,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,797.81 : 1,000,254.18 = 402,509.34 : x
  2. Step 2: Convert to fraction form
    724,797.81/1,000,254.18 = 402,509.34/x
  3. Step 3: Cross multiply
    724,797.81x = 1,000,254.18 × 402,509.34
  4. Step 4: Simplify right side
    724,797.81x = 402,611,649,824.04
  5. Step 5: Solve for x
    x = 402,611,649,824.04/724,797.81
  6. Step 6: Final answer
    x = 555,481.33

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Double scale
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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.