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Finding the Fourth Proportional to 869,404.10, 1,303,498.65 and 514,235.30

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Solution

The fourth proportional to 869,404.10, 1,303,498.65 and 514,235.30 is: 770,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,404.10 : 1,303,498.65 = 514,235.30 : x
  2. Step 2: Convert to fraction form
    869,404.10/1,303,498.65 = 514,235.30/x
  3. Step 3: Cross multiply
    869,404.10x = 1,303,498.65 × 514,235.30
  4. Step 4: Simplify right side
    869,404.10x = 670,305,019,332.35
  5. Step 5: Solve for x
    x = 670,305,019,332.35/869,404.10
  6. Step 6: Final answer
    x = 770,993.63

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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.