Home / 1,780,472.60-2,670,712.20-432,636.32

Finding the Fourth Proportional to 1,780,472.60, 2,670,712.20 and 432,636.32

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Solution

The fourth proportional to 1,780,472.60, 2,670,712.20 and 432,636.32 is: 648,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,472.60 : 2,670,712.20 = 432,636.32 : x
  2. Step 2: Convert to fraction form
    1,780,472.60/2,670,712.20 = 432,636.32/x
  3. Step 3: Cross multiply
    1,780,472.60x = 2,670,712.20 × 432,636.32
  4. Step 4: Simplify right side
    1,780,472.60x = 1,155,447,097,987.10
  5. Step 5: Solve for x
    x = 1,155,447,097,987.10/1,780,472.60
  6. Step 6: Final answer
    x = 648,955.28

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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.