Home / 828,125.40-1,241,880.90-329,386.20

Finding the Fourth Proportional to 828,125.40, 1,241,880.90 and 329,386.20

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Solution

The fourth proportional to 828,125.40, 1,241,880.90 and 329,386.20 is: 493,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,125.40 : 1,241,880.90 = 329,386.20 : x
  2. Step 2: Convert to fraction form
    828,125.40/1,241,880.90 = 329,386.20/x
  3. Step 3: Cross multiply
    828,125.40x = 1,241,880.90 × 329,386.20
  4. Step 4: Simplify right side
    828,125.40x = 409,058,430,503.58
  5. Step 5: Solve for x
    x = 409,058,430,503.58/828,125.40
  6. Step 6: Final answer
    x = 493,957.11

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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.