Home / 828,127.37-1,142,817.66-465,554.21

Finding the Fourth Proportional to 828,127.37, 1,142,817.66 and 465,554.21

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Solution

The fourth proportional to 828,127.37, 1,142,817.66 and 465,554.21 is: 642,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,127.37 : 1,142,817.66 = 465,554.21 : x
  2. Step 2: Convert to fraction form
    828,127.37/1,142,817.66 = 465,554.21/x
  3. Step 3: Cross multiply
    828,127.37x = 1,142,817.66 × 465,554.21
  4. Step 4: Simplify right side
    828,127.37x = 532,043,572,875.35
  5. Step 5: Solve for x
    x = 532,043,572,875.35/828,127.37
  6. Step 6: Final answer
    x = 642,465.87

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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.