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Finding the Fourth Proportional to 508,455.46, 701,666.59 and 279,016.57

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Solution

The fourth proportional to 508,455.46, 701,666.59 and 279,016.57 is: 385,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,455.46 : 701,666.59 = 279,016.57 : x
  2. Step 2: Convert to fraction form
    508,455.46/701,666.59 = 279,016.57/x
  3. Step 3: Cross multiply
    508,455.46x = 701,666.59 × 279,016.57
  4. Step 4: Simplify right side
    508,455.46x = 195,776,605,225.40
  5. Step 5: Solve for x
    x = 195,776,605,225.40/508,455.46
  6. Step 6: Final answer
    x = 385,041.80

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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.