Home / 343,668.18-474,430.05-307,713.90

Finding the Fourth Proportional to 343,668.18, 474,430.05 and 307,713.90

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Solution

The fourth proportional to 343,668.18, 474,430.05 and 307,713.90 is: 424,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,668.18 : 474,430.05 = 307,713.90 : x
  2. Step 2: Convert to fraction form
    343,668.18/474,430.05 = 307,713.90/x
  3. Step 3: Cross multiply
    343,668.18x = 474,430.05 × 307,713.90
  4. Step 4: Simplify right side
    343,668.18x = 145,988,720,962.70
  5. Step 5: Solve for x
    x = 145,988,720,962.70/343,668.18
  6. Step 6: Final answer
    x = 424,795.57

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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.