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Finding the Fourth Proportional to 851,970.80, 1,276,870.80 and 452,802.80

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Solution

The fourth proportional to 851,970.80, 1,276,870.80 and 452,802.80 is: 678,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,970.80 : 1,276,870.80 = 452,802.80 : x
  2. Step 2: Convert to fraction form
    851,970.80/1,276,870.80 = 452,802.80/x
  3. Step 3: Cross multiply
    851,970.80x = 1,276,870.80 × 452,802.80
  4. Step 4: Simplify right side
    851,970.80x = 578,170,673,478.24
  5. Step 5: Solve for x
    x = 578,170,673,478.24/851,970.80
  6. Step 6: Final answer
    x = 678,627.33

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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.