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Finding the Fourth Proportional to 459,487.62, 689,264.32 and 122,526.50

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Solution

The fourth proportional to 459,487.62, 689,264.32 and 122,526.50 is: 183,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,487.62 : 689,264.32 = 122,526.50 : x
  2. Step 2: Convert to fraction form
    459,487.62/689,264.32 = 122,526.50/x
  3. Step 3: Cross multiply
    459,487.62x = 689,264.32 × 122,526.50
  4. Step 4: Simplify right side
    459,487.62x = 84,453,144,704.48
  5. Step 5: Solve for x
    x = 84,453,144,704.48/459,487.62
  6. Step 6: Final answer
    x = 183,798.52

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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.