Home / 716,288.30-1,075,002.69-400,686.38

Finding the Fourth Proportional to 716,288.30, 1,075,002.69 and 400,686.38

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Solution

The fourth proportional to 716,288.30, 1,075,002.69 and 400,686.38 is: 601,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,288.30 : 1,075,002.69 = 400,686.38 : x
  2. Step 2: Convert to fraction form
    716,288.30/1,075,002.69 = 400,686.38/x
  3. Step 3: Cross multiply
    716,288.30x = 1,075,002.69 × 400,686.38
  4. Step 4: Simplify right side
    716,288.30x = 430,738,936,346.36
  5. Step 5: Solve for x
    x = 430,738,936,346.36/716,288.30
  6. Step 6: Final answer
    x = 601,348.56

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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.