Home / 880,929.84-1,321,219.80-431,457.60

Finding the Fourth Proportional to 880,929.84, 1,321,219.80 and 431,457.60

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Solution

The fourth proportional to 880,929.84, 1,321,219.80 and 431,457.60 is: 647,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,929.84 : 1,321,219.80 = 431,457.60 : x
  2. Step 2: Convert to fraction form
    880,929.84/1,321,219.80 = 431,457.60/x
  3. Step 3: Cross multiply
    880,929.84x = 1,321,219.80 × 431,457.60
  4. Step 4: Simplify right side
    880,929.84x = 570,050,323,980.48
  5. Step 5: Solve for x
    x = 570,050,323,980.48/880,929.84
  6. Step 6: Final answer
    x = 647,100.71

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1.5x scale

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.