Home / 828,144.90-1,142,813.37-465,583.98

Finding the Fourth Proportional to 828,144.90, 1,142,813.37 and 465,583.98

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Solution

The fourth proportional to 828,144.90, 1,142,813.37 and 465,583.98 is: 642,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,144.90 : 1,142,813.37 = 465,583.98 : x
  2. Step 2: Convert to fraction form
    828,144.90/1,142,813.37 = 465,583.98/x
  3. Step 3: Cross multiply
    828,144.90x = 1,142,813.37 × 465,583.98
  4. Step 4: Simplify right side
    828,144.90x = 532,075,597,201.81
  5. Step 5: Solve for x
    x = 532,075,597,201.81/828,144.90
  6. Step 6: Final answer
    x = 642,490.94

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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.