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Finding the Fourth Proportional to 549,307.56, 758,109.14 and 307,543.42

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Solution

The fourth proportional to 549,307.56, 758,109.14 and 307,543.42 is: 424,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,307.56 : 758,109.14 = 307,543.42 : x
  2. Step 2: Convert to fraction form
    549,307.56/758,109.14 = 307,543.42/x
  3. Step 3: Cross multiply
    549,307.56x = 758,109.14 × 307,543.42
  4. Step 4: Simplify right side
    549,307.56x = 233,151,477,648.86
  5. Step 5: Solve for x
    x = 233,151,477,648.86/549,307.56
  6. Step 6: Final answer
    x = 424,446.15

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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.