Home / 1,223,168.72-1,688,028.96-679,307.04

Finding the Fourth Proportional to 1,223,168.72, 1,688,028.96 and 679,307.04

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Solution

The fourth proportional to 1,223,168.72, 1,688,028.96 and 679,307.04 is: 937,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,168.72 : 1,688,028.96 = 679,307.04 : x
  2. Step 2: Convert to fraction form
    1,223,168.72/1,688,028.96 = 679,307.04/x
  3. Step 3: Cross multiply
    1,223,168.72x = 1,688,028.96 × 679,307.04
  4. Step 4: Simplify right side
    1,223,168.72x = 1,146,689,956,251.88
  5. Step 5: Solve for x
    x = 1,146,689,956,251.88/1,223,168.72
  6. Step 6: Final answer
    x = 937,474.89

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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.