Home / 395,130.24-592,714.32-128,890.24

Finding the Fourth Proportional to 395,130.24, 592,714.32 and 128,890.24

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Solution

The fourth proportional to 395,130.24, 592,714.32 and 128,890.24 is: 193,341.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,130.24 : 592,714.32 = 128,890.24 : x
  2. Step 2: Convert to fraction form
    395,130.24/592,714.32 = 128,890.24/x
  3. Step 3: Cross multiply
    395,130.24x = 592,714.32 × 128,890.24
  4. Step 4: Simplify right side
    395,130.24x = 76,395,090,956.24
  5. Step 5: Solve for x
    x = 76,395,090,956.24/395,130.24
  6. Step 6: Final answer
    x = 193,341.54

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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.