Home / 542,004.39-747,946.20-312,571.35

Finding the Fourth Proportional to 542,004.39, 747,946.20 and 312,571.35

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Solution

The fourth proportional to 542,004.39, 747,946.20 and 312,571.35 is: 431,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,004.39 : 747,946.20 = 312,571.35 : x
  2. Step 2: Convert to fraction form
    542,004.39/747,946.20 = 312,571.35/x
  3. Step 3: Cross multiply
    542,004.39x = 747,946.20 × 312,571.35
  4. Step 4: Simplify right side
    542,004.39x = 233,786,549,721.64
  5. Step 5: Solve for x
    x = 233,786,549,721.64/542,004.39
  6. Step 6: Final answer
    x = 431,337.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.