Home / 1,140,765.32-1,712,830.14-636,311.90

Finding the Fourth Proportional to 1,140,765.32, 1,712,830.14 and 636,311.90

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Solution

The fourth proportional to 1,140,765.32, 1,712,830.14 and 636,311.90 is: 955,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,765.32 : 1,712,830.14 = 636,311.90 : x
  2. Step 2: Convert to fraction form
    1,140,765.32/1,712,830.14 = 636,311.90/x
  3. Step 3: Cross multiply
    1,140,765.32x = 1,712,830.14 × 636,311.90
  4. Step 4: Simplify right side
    1,140,765.32x = 1,089,894,200,760.67
  5. Step 5: Solve for x
    x = 1,089,894,200,760.67/1,140,765.32
  6. Step 6: Final answer
    x = 955,406.15

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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.