Home / 710,875.20-1,064,930.40-394,766.40

Finding the Fourth Proportional to 710,875.20, 1,064,930.40 and 394,766.40

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Solution

The fourth proportional to 710,875.20, 1,064,930.40 and 394,766.40 is: 591,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,875.20 : 1,064,930.40 = 394,766.40 : x
  2. Step 2: Convert to fraction form
    710,875.20/1,064,930.40 = 394,766.40/x
  3. Step 3: Cross multiply
    710,875.20x = 1,064,930.40 × 394,766.40
  4. Step 4: Simplify right side
    710,875.20x = 420,398,740,258.56
  5. Step 5: Solve for x
    x = 420,398,740,258.56/710,875.20
  6. Step 6: Final answer
    x = 591,381.92

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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.