Home / 858,673.30-1,288,014.39-503,438.20

Finding the Fourth Proportional to 858,673.30, 1,288,014.39 and 503,438.20

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Solution

The fourth proportional to 858,673.30, 1,288,014.39 and 503,438.20 is: 755,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,673.30 : 1,288,014.39 = 503,438.20 : x
  2. Step 2: Convert to fraction form
    858,673.30/1,288,014.39 = 503,438.20/x
  3. Step 3: Cross multiply
    858,673.30x = 1,288,014.39 × 503,438.20
  4. Step 4: Simplify right side
    858,673.30x = 648,435,651,516.66
  5. Step 5: Solve for x
    x = 648,435,651,516.66/858,673.30
  6. Step 6: Final answer
    x = 755,159.91

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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.