Home / 485,284.16-669,692.81-270,419.51

Finding the Fourth Proportional to 485,284.16, 669,692.81 and 270,419.51

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Solution

The fourth proportional to 485,284.16, 669,692.81 and 270,419.51 is: 373,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,284.16 : 669,692.81 = 270,419.51 : x
  2. Step 2: Convert to fraction form
    485,284.16/669,692.81 = 270,419.51/x
  3. Step 3: Cross multiply
    485,284.16x = 669,692.81 × 270,419.51
  4. Step 4: Simplify right side
    485,284.16x = 181,098,003,881.00
  5. Step 5: Solve for x
    x = 181,098,003,881.00/485,284.16
  6. Step 6: Final answer
    x = 373,179.30

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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.