Home / 1,139,281.32-1,572,204.30-642,525.96

Finding the Fourth Proportional to 1,139,281.32, 1,572,204.30 and 642,525.96

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Solution

The fourth proportional to 1,139,281.32, 1,572,204.30 and 642,525.96 is: 886,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,281.32 : 1,572,204.30 = 642,525.96 : x
  2. Step 2: Convert to fraction form
    1,139,281.32/1,572,204.30 = 642,525.96/x
  3. Step 3: Cross multiply
    1,139,281.32x = 1,572,204.30 × 642,525.96
  4. Step 4: Simplify right side
    1,139,281.32x = 1,010,182,077,173.63
  5. Step 5: Solve for x
    x = 1,010,182,077,173.63/1,139,281.32
  6. Step 6: Final answer
    x = 886,683.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.