Home / 987,047.32-1,362,129.72-534,338.32

Finding the Fourth Proportional to 987,047.32, 1,362,129.72 and 534,338.32

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Solution

The fourth proportional to 987,047.32, 1,362,129.72 and 534,338.32 is: 737,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,047.32 : 1,362,129.72 = 534,338.32 : x
  2. Step 2: Convert to fraction form
    987,047.32/1,362,129.72 = 534,338.32/x
  3. Step 3: Cross multiply
    987,047.32x = 1,362,129.72 × 534,338.32
  4. Step 4: Simplify right side
    987,047.32x = 727,838,106,206.87
  5. Step 5: Solve for x
    x = 727,838,106,206.87/987,047.32
  6. Step 6: Final answer
    x = 737,389.27

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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.