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Finding the Fourth Proportional to 637,999.70, 956,999.55 and 549,353.30

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Solution

The fourth proportional to 637,999.70, 956,999.55 and 549,353.30 is: 824,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,999.70 : 956,999.55 = 549,353.30 : x
  2. Step 2: Convert to fraction form
    637,999.70/956,999.55 = 549,353.30/x
  3. Step 3: Cross multiply
    637,999.70x = 956,999.55 × 549,353.30
  4. Step 4: Simplify right side
    637,999.70x = 525,730,860,891.02
  5. Step 5: Solve for x
    x = 525,730,860,891.02/637,999.70
  6. Step 6: Final answer
    x = 824,029.95

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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.