Home / 438,316.15-657,474.23-359,519.35

Finding the Fourth Proportional to 438,316.15, 657,474.23 and 359,519.35

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Solution

The fourth proportional to 438,316.15, 657,474.23 and 359,519.35 is: 539,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,316.15 : 657,474.23 = 359,519.35 : x
  2. Step 2: Convert to fraction form
    438,316.15/657,474.23 = 359,519.35/x
  3. Step 3: Cross multiply
    438,316.15x = 657,474.23 × 359,519.35
  4. Step 4: Simplify right side
    438,316.15x = 236,374,706,013.75
  5. Step 5: Solve for x
    x = 236,374,706,013.75/438,316.15
  6. Step 6: Final answer
    x = 539,279.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.