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Finding the Fourth Proportional to 600,391.36, 899,939.04 and 390,180.16

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Solution

The fourth proportional to 600,391.36, 899,939.04 and 390,180.16 is: 584,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,391.36 : 899,939.04 = 390,180.16 : x
  2. Step 2: Convert to fraction form
    600,391.36/899,939.04 = 390,180.16/x
  3. Step 3: Cross multiply
    600,391.36x = 899,939.04 × 390,180.16
  4. Step 4: Simplify right side
    600,391.36x = 351,138,358,617.45
  5. Step 5: Solve for x
    x = 351,138,358,617.45/600,391.36
  6. Step 6: Final answer
    x = 584,849.12

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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.