Home / 1,380,127.41-2,070,415.85-407,590.11

Finding the Fourth Proportional to 1,380,127.41, 2,070,415.85 and 407,590.11

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Solution

The fourth proportional to 1,380,127.41, 2,070,415.85 and 407,590.11 is: 611,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,127.41 : 2,070,415.85 = 407,590.11 : x
  2. Step 2: Convert to fraction form
    1,380,127.41/2,070,415.85 = 407,590.11/x
  3. Step 3: Cross multiply
    1,380,127.41x = 2,070,415.85 × 407,590.11
  4. Step 4: Simplify right side
    1,380,127.41x = 843,881,022,009.29
  5. Step 5: Solve for x
    x = 843,881,022,009.29/1,380,127.41
  6. Step 6: Final answer
    x = 611,451.53

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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.