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Finding the Fourth Proportional to 768,041.80, 1,152,062.70 and 740,048.20

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Solution

The fourth proportional to 768,041.80, 1,152,062.70 and 740,048.20 is: 1,110,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,041.80 : 1,152,062.70 = 740,048.20 : x
  2. Step 2: Convert to fraction form
    768,041.80/1,152,062.70 = 740,048.20/x
  3. Step 3: Cross multiply
    768,041.80x = 1,152,062.70 × 740,048.20
  4. Step 4: Simplify right side
    768,041.80x = 852,581,927,422.14
  5. Step 5: Solve for x
    x = 852,581,927,422.14/768,041.80
  6. Step 6: Final answer
    x = 1,110,072.30

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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.