Home / 851,272.80-1,276,909.20-714,415.20

Finding the Fourth Proportional to 851,272.80, 1,276,909.20 and 714,415.20

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Solution

The fourth proportional to 851,272.80, 1,276,909.20 and 714,415.20 is: 1,071,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,272.80 : 1,276,909.20 = 714,415.20 : x
  2. Step 2: Convert to fraction form
    851,272.80/1,276,909.20 = 714,415.20/x
  3. Step 3: Cross multiply
    851,272.80x = 1,276,909.20 × 714,415.20
  4. Step 4: Simplify right side
    851,272.80x = 912,243,341,499.84
  5. Step 5: Solve for x
    x = 912,243,341,499.84/851,272.80
  6. Step 6: Final answer
    x = 1,071,622.80

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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.