Home / 505,742.40-758,986.87-239,502.42

Finding the Fourth Proportional to 505,742.40, 758,986.87 and 239,502.42

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Solution

The fourth proportional to 505,742.40, 758,986.87 and 239,502.42 is: 359,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,742.40 : 758,986.87 = 239,502.42 : x
  2. Step 2: Convert to fraction form
    505,742.40/758,986.87 = 239,502.42/x
  3. Step 3: Cross multiply
    505,742.40x = 758,986.87 × 239,502.42
  4. Step 4: Simplify right side
    505,742.40x = 181,779,192,113.23
  5. Step 5: Solve for x
    x = 181,779,192,113.23/505,742.40
  6. Step 6: Final answer
    x = 359,430.40

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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.