Home / 545,192.08-752,128.68-384,021.52

Finding the Fourth Proportional to 545,192.08, 752,128.68 and 384,021.52

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Solution

The fourth proportional to 545,192.08, 752,128.68 and 384,021.52 is: 529,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,192.08 : 752,128.68 = 384,021.52 : x
  2. Step 2: Convert to fraction form
    545,192.08/752,128.68 = 384,021.52/x
  3. Step 3: Cross multiply
    545,192.08x = 752,128.68 × 384,021.52
  4. Step 4: Simplify right side
    545,192.08x = 288,833,598,929.19
  5. Step 5: Solve for x
    x = 288,833,598,929.19/545,192.08
  6. Step 6: Final answer
    x = 529,783.19

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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.