Home / 750,070.21-1,125,078.64-300,670.40

Finding the Fourth Proportional to 750,070.21, 1,125,078.64 and 300,670.40

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Solution

The fourth proportional to 750,070.21, 1,125,078.64 and 300,670.40 is: 450,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,070.21 : 1,125,078.64 = 300,670.40 : x
  2. Step 2: Convert to fraction form
    750,070.21/1,125,078.64 = 300,670.40/x
  3. Step 3: Cross multiply
    750,070.21x = 1,125,078.64 × 300,670.40
  4. Step 4: Simplify right side
    750,070.21x = 338,277,844,720.26
  5. Step 5: Solve for x
    x = 338,277,844,720.26/750,070.21
  6. Step 6: Final answer
    x = 450,994.91

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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.