Home / 742,710.24-1,114,108.56-210,186.72

Finding the Fourth Proportional to 742,710.24, 1,114,108.56 and 210,186.72

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Solution

The fourth proportional to 742,710.24, 1,114,108.56 and 210,186.72 is: 315,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,710.24 : 1,114,108.56 = 210,186.72 : x
  2. Step 2: Convert to fraction form
    742,710.24/1,114,108.56 = 210,186.72/x
  3. Step 3: Cross multiply
    742,710.24x = 1,114,108.56 × 210,186.72
  4. Step 4: Simplify right side
    742,710.24x = 234,170,823,950.32
  5. Step 5: Solve for x
    x = 234,170,823,950.32/742,710.24
  6. Step 6: Final answer
    x = 315,292.31

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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.