Home / 860,910.40-1,290,904.80-361,710.40

Finding the Fourth Proportional to 860,910.40, 1,290,904.80 and 361,710.40

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Solution

The fourth proportional to 860,910.40, 1,290,904.80 and 361,710.40 is: 542,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,910.40 : 1,290,904.80 = 361,710.40 : x
  2. Step 2: Convert to fraction form
    860,910.40/1,290,904.80 = 361,710.40/x
  3. Step 3: Cross multiply
    860,910.40x = 1,290,904.80 × 361,710.40
  4. Step 4: Simplify right side
    860,910.40x = 466,933,691,569.92
  5. Step 5: Solve for x
    x = 466,933,691,569.92/860,910.40
  6. Step 6: Final answer
    x = 542,372.00

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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.