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Finding the Fourth Proportional to 533,539.81, 736,308.53 and 307,258.21

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Solution

The fourth proportional to 533,539.81, 736,308.53 and 307,258.21 is: 424,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,539.81 : 736,308.53 = 307,258.21 : x
  2. Step 2: Convert to fraction form
    533,539.81/736,308.53 = 307,258.21/x
  3. Step 3: Cross multiply
    533,539.81x = 736,308.53 × 307,258.21
  4. Step 4: Simplify right side
    533,539.81x = 226,236,840,935.53
  5. Step 5: Solve for x
    x = 226,236,840,935.53/533,539.81
  6. Step 6: Final answer
    x = 424,029.92

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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.