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Finding the Fourth Proportional to 630,530.52, 945,789.53 and 288,877.03

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Solution

The fourth proportional to 630,530.52, 945,789.53 and 288,877.03 is: 433,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,530.52 : 945,789.53 = 288,877.03 : x
  2. Step 2: Convert to fraction form
    630,530.52/945,789.53 = 288,877.03/x
  3. Step 3: Cross multiply
    630,530.52x = 945,789.53 × 288,877.03
  4. Step 4: Simplify right side
    630,530.52x = 273,216,870,431.50
  5. Step 5: Solve for x
    x = 273,216,870,431.50/630,530.52
  6. Step 6: Final answer
    x = 433,312.68

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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.