Home / 687,741.27-1,030,269.90-450,364.29

Finding the Fourth Proportional to 687,741.27, 1,030,269.90 and 450,364.29

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Solution

The fourth proportional to 687,741.27, 1,030,269.90 and 450,364.29 is: 674,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,741.27 : 1,030,269.90 = 450,364.29 : x
  2. Step 2: Convert to fraction form
    687,741.27/1,030,269.90 = 450,364.29/x
  3. Step 3: Cross multiply
    687,741.27x = 1,030,269.90 × 450,364.29
  4. Step 4: Simplify right side
    687,741.27x = 463,996,772,021.87
  5. Step 5: Solve for x
    x = 463,996,772,021.87/687,741.27
  6. Step 6: Final answer
    x = 674,667.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.