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Finding the Fourth Proportional to 549,461.80, 758,234.82 and 307,740.52

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Solution

The fourth proportional to 549,461.80, 758,234.82 and 307,740.52 is: 424,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,461.80 : 758,234.82 = 307,740.52 : x
  2. Step 2: Convert to fraction form
    549,461.80/758,234.82 = 307,740.52/x
  3. Step 3: Cross multiply
    549,461.80x = 758,234.82 × 307,740.52
  4. Step 4: Simplify right side
    549,461.80x = 233,339,577,788.91
  5. Step 5: Solve for x
    x = 233,339,577,788.91/549,461.80
  6. Step 6: Final answer
    x = 424,669.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.