Home / 690,372.16-1,035,676.32-316,427.20

Finding the Fourth Proportional to 690,372.16, 1,035,676.32 and 316,427.20

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Solution

The fourth proportional to 690,372.16, 1,035,676.32 and 316,427.20 is: 474,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,372.16 : 1,035,676.32 = 316,427.20 : x
  2. Step 2: Convert to fraction form
    690,372.16/1,035,676.32 = 316,427.20/x
  3. Step 3: Cross multiply
    690,372.16x = 1,035,676.32 × 316,427.20
  4. Step 4: Simplify right side
    690,372.16x = 327,716,158,043.90
  5. Step 5: Solve for x
    x = 327,716,158,043.90/690,372.16
  6. Step 6: Final answer
    x = 474,694.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.