Home / 542,025.30-747,985.20-300,303.01

Finding the Fourth Proportional to 542,025.30, 747,985.20 and 300,303.01

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Solution

The fourth proportional to 542,025.30, 747,985.20 and 300,303.01 is: 414,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,025.30 : 747,985.20 = 300,303.01 : x
  2. Step 2: Convert to fraction form
    542,025.30/747,985.20 = 300,303.01/x
  3. Step 3: Cross multiply
    542,025.30x = 747,985.20 × 300,303.01
  4. Step 4: Simplify right side
    542,025.30x = 224,622,206,995.45
  5. Step 5: Solve for x
    x = 224,622,206,995.45/542,025.30
  6. Step 6: Final answer
    x = 414,412.77

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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.