Home / 883,742.16-1,219,616.34-665,565.96

Finding the Fourth Proportional to 883,742.16, 1,219,616.34 and 665,565.96

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Solution

The fourth proportional to 883,742.16, 1,219,616.34 and 665,565.96 is: 918,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,742.16 : 1,219,616.34 = 665,565.96 : x
  2. Step 2: Convert to fraction form
    883,742.16/1,219,616.34 = 665,565.96/x
  3. Step 3: Cross multiply
    883,742.16x = 1,219,616.34 × 665,565.96
  4. Step 4: Simplify right side
    883,742.16x = 811,735,120,163.79
  5. Step 5: Solve for x
    x = 811,735,120,163.79/883,742.16
  6. Step 6: Final answer
    x = 918,520.31

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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.