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Finding the Fourth Proportional to 545,415.68, 817,155.48 and 465,724.64

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Solution

The fourth proportional to 545,415.68, 817,155.48 and 465,724.64 is: 697,760.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,415.68 : 817,155.48 = 465,724.64 : x
  2. Step 2: Convert to fraction form
    545,415.68/817,155.48 = 465,724.64/x
  3. Step 3: Cross multiply
    545,415.68x = 817,155.48 × 465,724.64
  4. Step 4: Simplify right side
    545,415.68x = 380,569,441,747.03
  5. Step 5: Solve for x
    x = 380,569,441,747.03/545,415.68
  6. Step 6: Final answer
    x = 697,760.36

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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.