Home / 1,384,897.20-2,077,507.80-438,363.60

Finding the Fourth Proportional to 1,384,897.20, 2,077,507.80 and 438,363.60

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Solution

The fourth proportional to 1,384,897.20, 2,077,507.80 and 438,363.60 is: 657,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,897.20 : 2,077,507.80 = 438,363.60 : x
  2. Step 2: Convert to fraction form
    1,384,897.20/2,077,507.80 = 438,363.60/x
  3. Step 3: Cross multiply
    1,384,897.20x = 2,077,507.80 × 438,363.60
  4. Step 4: Simplify right side
    1,384,897.20x = 910,703,798,236.08
  5. Step 5: Solve for x
    x = 910,703,798,236.08/1,384,897.20
  6. Step 6: Final answer
    x = 657,596.68

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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.