Home / 926,928.20-1,388,318.70-761,040.20

Finding the Fourth Proportional to 926,928.20, 1,388,318.70 and 761,040.20

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Solution

The fourth proportional to 926,928.20, 1,388,318.70 and 761,040.20 is: 1,139,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,928.20 : 1,388,318.70 = 761,040.20 : x
  2. Step 2: Convert to fraction form
    926,928.20/1,388,318.70 = 761,040.20/x
  3. Step 3: Cross multiply
    926,928.20x = 1,388,318.70 × 761,040.20
  4. Step 4: Simplify right side
    926,928.20x = 1,056,566,341,111.74
  5. Step 5: Solve for x
    x = 1,056,566,341,111.74/926,928.20
  6. Step 6: Final answer
    x = 1,139,857.80

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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.