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Finding the Fourth Proportional to 549,415.74, 758,157.60 and 307,642.89

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Solution

The fourth proportional to 549,415.74, 758,157.60 and 307,642.89 is: 424,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,415.74 : 758,157.60 = 307,642.89 : x
  2. Step 2: Convert to fraction form
    549,415.74/758,157.60 = 307,642.89/x
  3. Step 3: Cross multiply
    549,415.74x = 758,157.60 × 307,642.89
  4. Step 4: Simplify right side
    549,415.74x = 233,241,795,139.46
  5. Step 5: Solve for x
    x = 233,241,795,139.46/549,415.74
  6. Step 6: Final answer
    x = 424,526.96

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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.