Home / 751,470.21-1,036,918.15-456,969.69

Finding the Fourth Proportional to 751,470.21, 1,036,918.15 and 456,969.69

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Solution

The fourth proportional to 751,470.21, 1,036,918.15 and 456,969.69 is: 630,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,470.21 : 1,036,918.15 = 456,969.69 : x
  2. Step 2: Convert to fraction form
    751,470.21/1,036,918.15 = 456,969.69/x
  3. Step 3: Cross multiply
    751,470.21x = 1,036,918.15 × 456,969.69
  4. Step 4: Simplify right side
    751,470.21x = 473,840,164,418.45
  5. Step 5: Solve for x
    x = 473,840,164,418.45/751,470.21
  6. Step 6: Final answer
    x = 630,550.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.