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Finding the Fourth Proportional to 487,632.76, 673,063.50 and 457,893.88

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Solution

The fourth proportional to 487,632.76, 673,063.50 and 457,893.88 is: 632,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,632.76 : 673,063.50 = 457,893.88 : x
  2. Step 2: Convert to fraction form
    487,632.76/673,063.50 = 457,893.88/x
  3. Step 3: Cross multiply
    487,632.76x = 673,063.50 × 457,893.88
  4. Step 4: Simplify right side
    487,632.76x = 308,191,657,501.38
  5. Step 5: Solve for x
    x = 308,191,657,501.38/487,632.76
  6. Step 6: Final answer
    x = 632,015.90

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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.