Home / 460,603.56-690,381.23-280,291.30

Finding the Fourth Proportional to 460,603.56, 690,381.23 and 280,291.30

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Solution

The fourth proportional to 460,603.56, 690,381.23 and 280,291.30 is: 420,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,603.56 : 690,381.23 = 280,291.30 : x
  2. Step 2: Convert to fraction form
    460,603.56/690,381.23 = 280,291.30/x
  3. Step 3: Cross multiply
    460,603.56x = 690,381.23 × 280,291.30
  4. Step 4: Simplify right side
    460,603.56x = 193,507,852,480.14
  5. Step 5: Solve for x
    x = 193,507,852,480.14/460,603.56
  6. Step 6: Final answer
    x = 420,118.02

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1.5x scale

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.