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Finding the Fourth Proportional to 646,218.90, 969,328.35 and 362,783.70

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Solution

The fourth proportional to 646,218.90, 969,328.35 and 362,783.70 is: 544,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,218.90 : 969,328.35 = 362,783.70 : x
  2. Step 2: Convert to fraction form
    646,218.90/969,328.35 = 362,783.70/x
  3. Step 3: Cross multiply
    646,218.90x = 969,328.35 × 362,783.70
  4. Step 4: Simplify right side
    646,218.90x = 351,656,525,327.90
  5. Step 5: Solve for x
    x = 351,656,525,327.90/646,218.90
  6. Step 6: Final answer
    x = 544,175.55

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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.