Home / 820,172.70-1,230,259.05-465,878.70

Finding the Fourth Proportional to 820,172.70, 1,230,259.05 and 465,878.70

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Solution

The fourth proportional to 820,172.70, 1,230,259.05 and 465,878.70 is: 698,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,172.70 : 1,230,259.05 = 465,878.70 : x
  2. Step 2: Convert to fraction form
    820,172.70/1,230,259.05 = 465,878.70/x
  3. Step 3: Cross multiply
    820,172.70x = 1,230,259.05 × 465,878.70
  4. Step 4: Simplify right side
    820,172.70x = 573,151,486,877.24
  5. Step 5: Solve for x
    x = 573,151,486,877.24/820,172.70
  6. Step 6: Final answer
    x = 698,818.05

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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.