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Finding the Fourth Proportional to 607,355.50, 911,585.76 and 323,284.87

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Solution

The fourth proportional to 607,355.50, 911,585.76 and 323,284.87 is: 485,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,355.50 : 911,585.76 = 323,284.87 : x
  2. Step 2: Convert to fraction form
    607,355.50/911,585.76 = 323,284.87/x
  3. Step 3: Cross multiply
    607,355.50x = 911,585.76 × 323,284.87
  4. Step 4: Simplify right side
    607,355.50x = 294,701,883,915.45
  5. Step 5: Solve for x
    x = 294,701,883,915.45/607,355.50
  6. Step 6: Final answer
    x = 485,221.40

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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.