Home / 343,829.10-515,743.65-307,670.70

Finding the Fourth Proportional to 343,829.10, 515,743.65 and 307,670.70

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Solution

The fourth proportional to 343,829.10, 515,743.65 and 307,670.70 is: 461,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,829.10 : 515,743.65 = 307,670.70 : x
  2. Step 2: Convert to fraction form
    343,829.10/515,743.65 = 307,670.70/x
  3. Step 3: Cross multiply
    343,829.10x = 515,743.65 × 307,670.70
  4. Step 4: Simplify right side
    343,829.10x = 158,679,209,816.06
  5. Step 5: Solve for x
    x = 158,679,209,816.06/343,829.10
  6. Step 6: Final answer
    x = 461,506.05

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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.