Home / 1,587,420.54-2,188,555.81-1,145,524.30

Finding the Fourth Proportional to 1,587,420.54, 2,188,555.81 and 1,145,524.30

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Solution

The fourth proportional to 1,587,420.54, 2,188,555.81 and 1,145,524.30 is: 1,579,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,420.54 : 2,188,555.81 = 1,145,524.30 : x
  2. Step 2: Convert to fraction form
    1,587,420.54/2,188,555.81 = 1,145,524.30/x
  3. Step 3: Cross multiply
    1,587,420.54x = 2,188,555.81 × 1,145,524.30
  4. Step 4: Simplify right side
    1,587,420.54x = 2,507,043,853,925.98
  5. Step 5: Solve for x
    x = 2,507,043,853,925.98/1,587,420.54
  6. Step 6: Final answer
    x = 1,579,319.27

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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.