Home / 869,350.50-1,199,703.69-506,789.64

Finding the Fourth Proportional to 869,350.50, 1,199,703.69 and 506,789.64

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Solution

The fourth proportional to 869,350.50, 1,199,703.69 and 506,789.64 is: 699,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,350.50 : 1,199,703.69 = 506,789.64 : x
  2. Step 2: Convert to fraction form
    869,350.50/1,199,703.69 = 506,789.64/x
  3. Step 3: Cross multiply
    869,350.50x = 1,199,703.69 × 506,789.64
  4. Step 4: Simplify right side
    869,350.50x = 607,997,401,161.77
  5. Step 5: Solve for x
    x = 607,997,401,161.77/869,350.50
  6. Step 6: Final answer
    x = 699,369.70

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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.