Home / 805,903.80-1,207,818.90-490,025.40

Finding the Fourth Proportional to 805,903.80, 1,207,818.90 and 490,025.40

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Solution

The fourth proportional to 805,903.80, 1,207,818.90 and 490,025.40 is: 734,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,903.80 : 1,207,818.90 = 490,025.40 : x
  2. Step 2: Convert to fraction form
    805,903.80/1,207,818.90 = 490,025.40/x
  3. Step 3: Cross multiply
    805,903.80x = 1,207,818.90 × 490,025.40
  4. Step 4: Simplify right side
    805,903.80x = 591,861,939,600.06
  5. Step 5: Solve for x
    x = 591,861,939,600.06/805,903.80
  6. Step 6: Final answer
    x = 734,407.68

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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.