Home / 1,447,708.45-1,997,840.02-803,128.65

Finding the Fourth Proportional to 1,447,708.45, 1,997,840.02 and 803,128.65

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Solution

The fourth proportional to 1,447,708.45, 1,997,840.02 and 803,128.65 is: 1,108,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,708.45 : 1,997,840.02 = 803,128.65 : x
  2. Step 2: Convert to fraction form
    1,447,708.45/1,997,840.02 = 803,128.65/x
  3. Step 3: Cross multiply
    1,447,708.45x = 1,997,840.02 × 803,128.65
  4. Step 4: Simplify right side
    1,447,708.45x = 1,604,522,558,178.57
  5. Step 5: Solve for x
    x = 1,604,522,558,178.57/1,447,708.45
  6. Step 6: Final answer
    x = 1,108,318.85

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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.