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Finding the Fourth Proportional to 577,136.10, 865,704.15 and 549,579.90

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Solution

The fourth proportional to 577,136.10, 865,704.15 and 549,579.90 is: 824,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,136.10 : 865,704.15 = 549,579.90 : x
  2. Step 2: Convert to fraction form
    577,136.10/865,704.15 = 549,579.90/x
  3. Step 3: Cross multiply
    577,136.10x = 865,704.15 × 549,579.90
  4. Step 4: Simplify right side
    577,136.10x = 475,773,600,186.59
  5. Step 5: Solve for x
    x = 475,773,600,186.59/577,136.10
  6. Step 6: Final answer
    x = 824,369.85

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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.