Home / 1,145,117.40-1,716,207.30-639,677.40

Finding the Fourth Proportional to 1,145,117.40, 1,716,207.30 and 639,677.40

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Solution

The fourth proportional to 1,145,117.40, 1,716,207.30 and 639,677.40 is: 958,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,117.40 : 1,716,207.30 = 639,677.40 : x
  2. Step 2: Convert to fraction form
    1,145,117.40/1,716,207.30 = 639,677.40/x
  3. Step 3: Cross multiply
    1,145,117.40x = 1,716,207.30 × 639,677.40
  4. Step 4: Simplify right side
    1,145,117.40x = 1,097,819,023,525.02
  5. Step 5: Solve for x
    x = 1,097,819,023,525.02/1,145,117.40
  6. Step 6: Final answer
    x = 958,695.61

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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.