Home / 1,523,720.16-2,102,946.30-879,128.64

Finding the Fourth Proportional to 1,523,720.16, 2,102,946.30 and 879,128.64

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Solution

The fourth proportional to 1,523,720.16, 2,102,946.30 and 879,128.64 is: 1,213,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523,720.16 : 2,102,946.30 = 879,128.64 : x
  2. Step 2: Convert to fraction form
    1,523,720.16/2,102,946.30 = 879,128.64/x
  3. Step 3: Cross multiply
    1,523,720.16x = 2,102,946.30 × 879,128.64
  4. Step 4: Simplify right side
    1,523,720.16x = 1,848,760,320,712.03
  5. Step 5: Solve for x
    x = 1,848,760,320,712.03/1,523,720.16
  6. Step 6: Final answer
    x = 1,213,320.12

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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.