Home / 753,026.75-1,039,172.22-430,742.21

Finding the Fourth Proportional to 753,026.75, 1,039,172.22 and 430,742.21

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Solution

The fourth proportional to 753,026.75, 1,039,172.22 and 430,742.21 is: 594,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,026.75 : 1,039,172.22 = 430,742.21 : x
  2. Step 2: Convert to fraction form
    753,026.75/1,039,172.22 = 430,742.21/x
  3. Step 3: Cross multiply
    753,026.75x = 1,039,172.22 × 430,742.21
  4. Step 4: Simplify right side
    753,026.75x = 447,615,341,211.34
  5. Step 5: Solve for x
    x = 447,615,341,211.34/753,026.75
  6. Step 6: Final answer
    x = 594,421.57

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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.