Home / 1,388,488.04-2,082,777.90-477,661.40

Finding the Fourth Proportional to 1,388,488.04, 2,082,777.90 and 477,661.40

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Solution

The fourth proportional to 1,388,488.04, 2,082,777.90 and 477,661.40 is: 716,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,488.04 : 2,082,777.90 = 477,661.40 : x
  2. Step 2: Convert to fraction form
    1,388,488.04/2,082,777.90 = 477,661.40/x
  3. Step 3: Cross multiply
    1,388,488.04x = 2,082,777.90 × 477,661.40
  4. Step 4: Simplify right side
    1,388,488.04x = 994,862,607,603.06
  5. Step 5: Solve for x
    x = 994,862,607,603.06/1,388,488.04
  6. Step 6: Final answer
    x = 716,507.87

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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.