Home / 1,122,989.70-1,549,900.53-715,266.30

Finding the Fourth Proportional to 1,122,989.70, 1,549,900.53 and 715,266.30

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Solution

The fourth proportional to 1,122,989.70, 1,549,900.53 and 715,266.30 is: 987,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,989.70 : 1,549,900.53 = 715,266.30 : x
  2. Step 2: Convert to fraction form
    1,122,989.70/1,549,900.53 = 715,266.30/x
  3. Step 3: Cross multiply
    1,122,989.70x = 1,549,900.53 × 715,266.30
  4. Step 4: Simplify right side
    1,122,989.70x = 1,108,591,617,461.14
  5. Step 5: Solve for x
    x = 1,108,591,617,461.14/1,122,989.70
  6. Step 6: Final answer
    x = 987,178.79

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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.