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Finding the Fourth Proportional to 487,970.46, 731,880.81 and 133,012.94

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Solution

The fourth proportional to 487,970.46, 731,880.81 and 133,012.94 is: 199,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,970.46 : 731,880.81 = 133,012.94 : x
  2. Step 2: Convert to fraction form
    487,970.46/731,880.81 = 133,012.94/x
  3. Step 3: Cross multiply
    487,970.46x = 731,880.81 × 133,012.94
  4. Step 4: Simplify right side
    487,970.46x = 97,349,618,267.68
  5. Step 5: Solve for x
    x = 97,349,618,267.68/487,970.46
  6. Step 6: Final answer
    x = 199,499.00

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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.