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Finding the Fourth Proportional to 459,754.48, 689,603.10 and 220,038.64

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Solution

The fourth proportional to 459,754.48, 689,603.10 and 220,038.64 is: 330,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,754.48 : 689,603.10 = 220,038.64 : x
  2. Step 2: Convert to fraction form
    459,754.48/689,603.10 = 220,038.64/x
  3. Step 3: Cross multiply
    459,754.48x = 689,603.10 × 220,038.64
  4. Step 4: Simplify right side
    459,754.48x = 151,739,328,263.78
  5. Step 5: Solve for x
    x = 151,739,328,263.78/459,754.48
  6. Step 6: Final answer
    x = 330,044.26

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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.