Home / 520,340.13-717,977.52-290,824.05

Finding the Fourth Proportional to 520,340.13, 717,977.52 and 290,824.05

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Solution

The fourth proportional to 520,340.13, 717,977.52 and 290,824.05 is: 401,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,340.13 : 717,977.52 = 290,824.05 : x
  2. Step 2: Convert to fraction form
    520,340.13/717,977.52 = 290,824.05/x
  3. Step 3: Cross multiply
    520,340.13x = 717,977.52 × 290,824.05
  4. Step 4: Simplify right side
    520,340.13x = 208,805,130,175.36
  5. Step 5: Solve for x
    x = 208,805,130,175.36/520,340.13
  6. Step 6: Final answer
    x = 401,285.85

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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.