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Finding the Fourth Proportional to 1,300,229.80, 1,946,543.10 and 926,981.80

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Solution

The fourth proportional to 1,300,229.80, 1,946,543.10 and 926,981.80 is: 1,387,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,229.80 : 1,946,543.10 = 926,981.80 : x
  2. Step 2: Convert to fraction form
    1,300,229.80/1,946,543.10 = 926,981.80/x
  3. Step 3: Cross multiply
    1,300,229.80x = 1,946,543.10 × 926,981.80
  4. Step 4: Simplify right side
    1,300,229.80x = 1,804,410,026,615.58
  5. Step 5: Solve for x
    x = 1,804,410,026,615.58/1,300,229.80
  6. Step 6: Final answer
    x = 1,387,762.40

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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.