Home / 693,178.20-1,038,017.70-455,232.60

Finding the Fourth Proportional to 693,178.20, 1,038,017.70 and 455,232.60

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Solution

The fourth proportional to 693,178.20, 1,038,017.70 and 455,232.60 is: 681,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,178.20 : 1,038,017.70 = 455,232.60 : x
  2. Step 2: Convert to fraction form
    693,178.20/1,038,017.70 = 455,232.60/x
  3. Step 3: Cross multiply
    693,178.20x = 1,038,017.70 × 455,232.60
  4. Step 4: Simplify right side
    693,178.20x = 472,539,496,417.02
  5. Step 5: Solve for x
    x = 472,539,496,417.02/693,178.20
  6. Step 6: Final answer
    x = 681,699.88

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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.