Home / 1,161,520.20-1,742,280.30-909,577.80

Finding the Fourth Proportional to 1,161,520.20, 1,742,280.30 and 909,577.80

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Solution

The fourth proportional to 1,161,520.20, 1,742,280.30 and 909,577.80 is: 1,364,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,520.20 : 1,742,280.30 = 909,577.80 : x
  2. Step 2: Convert to fraction form
    1,161,520.20/1,742,280.30 = 909,577.80/x
  3. Step 3: Cross multiply
    1,161,520.20x = 1,742,280.30 × 909,577.80
  4. Step 4: Simplify right side
    1,161,520.20x = 1,584,739,482,257.34
  5. Step 5: Solve for x
    x = 1,584,739,482,257.34/1,161,520.20
  6. Step 6: Final answer
    x = 1,364,366.70

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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.