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Finding the Fourth Proportional to 1,775,263.40, 2,662,895.10 and 779,935.40

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Solution

The fourth proportional to 1,775,263.40, 2,662,895.10 and 779,935.40 is: 1,169,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,263.40 : 2,662,895.10 = 779,935.40 : x
  2. Step 2: Convert to fraction form
    1,775,263.40/2,662,895.10 = 779,935.40/x
  3. Step 3: Cross multiply
    1,775,263.40x = 2,662,895.10 × 779,935.40
  4. Step 4: Simplify right side
    1,775,263.40x = 2,076,886,154,976.54
  5. Step 5: Solve for x
    x = 2,076,886,154,976.54/1,775,263.40
  6. Step 6: Final answer
    x = 1,169,903.10

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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.