Home / 1,175,865.81-1,620,955.04-917,449.89

Finding the Fourth Proportional to 1,175,865.81, 1,620,955.04 and 917,449.89

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Solution

The fourth proportional to 1,175,865.81, 1,620,955.04 and 917,449.89 is: 1,264,723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,865.81 : 1,620,955.04 = 917,449.89 : x
  2. Step 2: Convert to fraction form
    1,175,865.81/1,620,955.04 = 917,449.89/x
  3. Step 3: Cross multiply
    1,175,865.81x = 1,620,955.04 × 917,449.89
  4. Step 4: Simplify right side
    1,175,865.81x = 1,487,145,018,555.70
  5. Step 5: Solve for x
    x = 1,487,145,018,555.70/1,175,865.81
  6. Step 6: Final answer
    x = 1,264,723.41

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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.