Home / 520,026.40-779,809.20-239,629.60

Finding the Fourth Proportional to 520,026.40, 779,809.20 and 239,629.60

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Solution

The fourth proportional to 520,026.40, 779,809.20 and 239,629.60 is: 359,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,026.40 : 779,809.20 = 239,629.60 : x
  2. Step 2: Convert to fraction form
    520,026.40/779,809.20 = 239,629.60/x
  3. Step 3: Cross multiply
    520,026.40x = 779,809.20 × 239,629.60
  4. Step 4: Simplify right side
    520,026.40x = 186,865,366,672.32
  5. Step 5: Solve for x
    x = 186,865,366,672.32/520,026.40
  6. Step 6: Final answer
    x = 359,338.23

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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.