Home / 751,421.60-1,127,132.40-658,109.60

Finding the Fourth Proportional to 751,421.60, 1,127,132.40 and 658,109.60

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Solution

The fourth proportional to 751,421.60, 1,127,132.40 and 658,109.60 is: 987,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,421.60 : 1,127,132.40 = 658,109.60 : x
  2. Step 2: Convert to fraction form
    751,421.60/1,127,132.40 = 658,109.60/x
  3. Step 3: Cross multiply
    751,421.60x = 1,127,132.40 × 658,109.60
  4. Step 4: Simplify right side
    751,421.60x = 741,776,652,911.04
  5. Step 5: Solve for x
    x = 741,776,652,911.04/751,421.60
  6. Step 6: Final answer
    x = 987,164.40

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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.