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Finding the Fourth Proportional to 554,308.92, 830,617.50 and 288,155.88

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Solution

The fourth proportional to 554,308.92, 830,617.50 and 288,155.88 is: 431,794.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,308.92 : 830,617.50 = 288,155.88 : x
  2. Step 2: Convert to fraction form
    554,308.92/830,617.50 = 288,155.88/x
  3. Step 3: Cross multiply
    554,308.92x = 830,617.50 × 288,155.88
  4. Step 4: Simplify right side
    554,308.92x = 239,347,316,655.90
  5. Step 5: Solve for x
    x = 239,347,316,655.90/554,308.92
  6. Step 6: Final answer
    x = 431,794.09

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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.