Home / 751,140.72-1,036,008.76-521,698.31

Finding the Fourth Proportional to 751,140.72, 1,036,008.76 and 521,698.31

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Solution

The fourth proportional to 751,140.72, 1,036,008.76 and 521,698.31 is: 719,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,140.72 : 1,036,008.76 = 521,698.31 : x
  2. Step 2: Convert to fraction form
    751,140.72/1,036,008.76 = 521,698.31/x
  3. Step 3: Cross multiply
    751,140.72x = 1,036,008.76 × 521,698.31
  4. Step 4: Simplify right side
    751,140.72x = 540,484,019,237.20
  5. Step 5: Solve for x
    x = 540,484,019,237.20/751,140.72
  6. Step 6: Final answer
    x = 719,550.95

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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.