Home / 545,621.77-752,697.26-423,930.21

Finding the Fourth Proportional to 545,621.77, 752,697.26 and 423,930.21

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Solution

The fourth proportional to 545,621.77, 752,697.26 and 423,930.21 is: 584,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,621.77 : 752,697.26 = 423,930.21 : x
  2. Step 2: Convert to fraction form
    545,621.77/752,697.26 = 423,930.21/x
  3. Step 3: Cross multiply
    545,621.77x = 752,697.26 × 423,930.21
  4. Step 4: Simplify right side
    545,621.77x = 319,091,104,145.70
  5. Step 5: Solve for x
    x = 319,091,104,145.70/545,621.77
  6. Step 6: Final answer
    x = 584,821.06

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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.