Home / 869,121.90-1,303,245.45-514,244.70

Finding the Fourth Proportional to 869,121.90, 1,303,245.45 and 514,244.70

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Solution

The fourth proportional to 869,121.90, 1,303,245.45 and 514,244.70 is: 771,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,121.90 : 1,303,245.45 = 514,244.70 : x
  2. Step 2: Convert to fraction form
    869,121.90/1,303,245.45 = 514,244.70/x
  3. Step 3: Cross multiply
    869,121.90x = 1,303,245.45 × 514,244.70
  4. Step 4: Simplify right side
    869,121.90x = 670,187,065,461.62
  5. Step 5: Solve for x
    x = 670,187,065,461.62/869,121.90
  6. Step 6: Final answer
    x = 771,108.25

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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.