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Finding the Fourth Proportional to 549,657.83, 758,549.58 and 307,942.40

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Solution

The fourth proportional to 549,657.83, 758,549.58 and 307,942.40 is: 424,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,657.83 : 758,549.58 = 307,942.40 : x
  2. Step 2: Convert to fraction form
    549,657.83/758,549.58 = 307,942.40/x
  3. Step 3: Cross multiply
    549,657.83x = 758,549.58 × 307,942.40
  4. Step 4: Simplify right side
    549,657.83x = 233,589,578,184.19
  5. Step 5: Solve for x
    x = 233,589,578,184.19/549,657.83
  6. Step 6: Final answer
    x = 424,972.71

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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.