Home / 782,347.40-1,174,298.70-383,438.60

Finding the Fourth Proportional to 782,347.40, 1,174,298.70 and 383,438.60

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Solution

The fourth proportional to 782,347.40, 1,174,298.70 and 383,438.60 is: 575,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,347.40 : 1,174,298.70 = 383,438.60 : x
  2. Step 2: Convert to fraction form
    782,347.40/1,174,298.70 = 383,438.60/x
  3. Step 3: Cross multiply
    782,347.40x = 1,174,298.70 × 383,438.60
  4. Step 4: Simplify right side
    782,347.40x = 450,271,449,509.82
  5. Step 5: Solve for x
    x = 450,271,449,509.82/782,347.40
  6. Step 6: Final answer
    x = 575,539.01

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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.