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Finding the Fourth Proportional to 520,228.28, 780,567.60 and 183,509.12

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Solution

The fourth proportional to 520,228.28, 780,567.60 and 183,509.12 is: 275,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,228.28 : 780,567.60 = 183,509.12 : x
  2. Step 2: Convert to fraction form
    520,228.28/780,567.60 = 183,509.12/x
  3. Step 3: Cross multiply
    520,228.28x = 780,567.60 × 183,509.12
  4. Step 4: Simplify right side
    520,228.28x = 143,241,273,376.51
  5. Step 5: Solve for x
    x = 143,241,273,376.51/520,228.28
  6. Step 6: Final answer
    x = 275,343.11

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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.