Home / 1,553,485.50-2,143,766.59-865,157.17

Finding the Fourth Proportional to 1,553,485.50, 2,143,766.59 and 865,157.17

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Solution

The fourth proportional to 1,553,485.50, 2,143,766.59 and 865,157.17 is: 1,193,892.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,485.50 : 2,143,766.59 = 865,157.17 : x
  2. Step 2: Convert to fraction form
    1,553,485.50/2,143,766.59 = 865,157.17/x
  3. Step 3: Cross multiply
    1,553,485.50x = 2,143,766.59 × 865,157.17
  4. Step 4: Simplify right side
    1,553,485.50x = 1,854,695,036,144.95
  5. Step 5: Solve for x
    x = 1,854,695,036,144.95/1,553,485.50
  6. Step 6: Final answer
    x = 1,193,892.72

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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.