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Finding the Fourth Proportional to 549,328.92, 758,011.26 and 307,577.88

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Solution

The fourth proportional to 549,328.92, 758,011.26 and 307,577.88 is: 424,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,328.92 : 758,011.26 = 307,577.88 : x
  2. Step 2: Convert to fraction form
    549,328.92/758,011.26 = 307,577.88/x
  3. Step 3: Cross multiply
    549,328.92x = 758,011.26 × 307,577.88
  4. Step 4: Simplify right side
    549,328.92x = 233,147,496,366.93
  5. Step 5: Solve for x
    x = 233,147,496,366.93/549,328.92
  6. Step 6: Final answer
    x = 424,422.40

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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.