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Finding the Fourth Proportional to 704,579.55, 972,318.42 and 382,289.55

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Solution

The fourth proportional to 704,579.55, 972,318.42 and 382,289.55 is: 527,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,579.55 : 972,318.42 = 382,289.55 : x
  2. Step 2: Convert to fraction form
    704,579.55/972,318.42 = 382,289.55/x
  3. Step 3: Cross multiply
    704,579.55x = 972,318.42 × 382,289.55
  4. Step 4: Simplify right side
    704,579.55x = 371,707,171,238.51
  5. Step 5: Solve for x
    x = 371,707,171,238.51/704,579.55
  6. Step 6: Final answer
    x = 527,558.84

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Double scale
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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.