Home / 858,679.23-1,288,023.29-503,444.13

Finding the Fourth Proportional to 858,679.23, 1,288,023.29 and 503,444.13

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Solution

The fourth proportional to 858,679.23, 1,288,023.29 and 503,444.13 is: 755,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,679.23 : 1,288,023.29 = 503,444.13 : x
  2. Step 2: Convert to fraction form
    858,679.23/1,288,023.29 = 503,444.13/x
  3. Step 3: Cross multiply
    858,679.23x = 1,288,023.29 × 503,444.13
  4. Step 4: Simplify right side
    858,679.23x = 648,447,762,136.57
  5. Step 5: Solve for x
    x = 648,447,762,136.57/858,679.23
  6. Step 6: Final answer
    x = 755,168.80

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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.