Home / 1,886,191.32-2,827,699.92-820,430.64

Finding the Fourth Proportional to 1,886,191.32, 2,827,699.92 and 820,430.64

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Solution

The fourth proportional to 1,886,191.32, 2,827,699.92 and 820,430.64 is: 1,229,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886,191.32 : 2,827,699.92 = 820,430.64 : x
  2. Step 2: Convert to fraction form
    1,886,191.32/2,827,699.92 = 820,430.64/x
  3. Step 3: Cross multiply
    1,886,191.32x = 2,827,699.92 × 820,430.64
  4. Step 4: Simplify right side
    1,886,191.32x = 2,319,931,655,093.55
  5. Step 5: Solve for x
    x = 2,319,931,655,093.55/1,886,191.32
  6. Step 6: Final answer
    x = 1,229,955.64

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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.