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Finding the Fourth Proportional to 520,001.20, 779,483.40 and 239,028.40

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Solution

The fourth proportional to 520,001.20, 779,483.40 and 239,028.40 is: 358,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,001.20 : 779,483.40 = 239,028.40 : x
  2. Step 2: Convert to fraction form
    520,001.20/779,483.40 = 239,028.40/x
  3. Step 3: Cross multiply
    520,001.20x = 779,483.40 × 239,028.40
  4. Step 4: Simplify right side
    520,001.20x = 186,318,669,928.56
  5. Step 5: Solve for x
    x = 186,318,669,928.56/520,001.20
  6. Step 6: Final answer
    x = 358,304.31

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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.