Home / 742,079.72-1,024,070.34-419,782.92

Finding the Fourth Proportional to 742,079.72, 1,024,070.34 and 419,782.92

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Solution

The fourth proportional to 742,079.72, 1,024,070.34 and 419,782.92 is: 579,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,079.72 : 1,024,070.34 = 419,782.92 : x
  2. Step 2: Convert to fraction form
    742,079.72/1,024,070.34 = 419,782.92/x
  3. Step 3: Cross multiply
    742,079.72x = 1,024,070.34 × 419,782.92
  4. Step 4: Simplify right side
    742,079.72x = 429,887,237,610.59
  5. Step 5: Solve for x
    x = 429,887,237,610.59/742,079.72
  6. Step 6: Final answer
    x = 579,300.61

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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.