Home / 1,687,075.32-2,530,345.11-789,140.28

Finding the Fourth Proportional to 1,687,075.32, 2,530,345.11 and 789,140.28

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Solution

The fourth proportional to 1,687,075.32, 2,530,345.11 and 789,140.28 is: 1,183,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,075.32 : 2,530,345.11 = 789,140.28 : x
  2. Step 2: Convert to fraction form
    1,687,075.32/2,530,345.11 = 789,140.28/x
  3. Step 3: Cross multiply
    1,687,075.32x = 2,530,345.11 × 789,140.28
  4. Step 4: Simplify right side
    1,687,075.32x = 1,996,797,248,602.03
  5. Step 5: Solve for x
    x = 1,996,797,248,602.03/1,687,075.32
  6. Step 6: Final answer
    x = 1,183,585.12

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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.