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Finding the Fourth Proportional to 508,303.68, 701,461.80 and 281,949.18

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Solution

The fourth proportional to 508,303.68, 701,461.80 and 281,949.18 is: 389,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,303.68 : 701,461.80 = 281,949.18 : x
  2. Step 2: Convert to fraction form
    508,303.68/701,461.80 = 281,949.18/x
  3. Step 3: Cross multiply
    508,303.68x = 701,461.80 × 281,949.18
  4. Step 4: Simplify right side
    508,303.68x = 197,776,579,311.32
  5. Step 5: Solve for x
    x = 197,776,579,311.32/508,303.68
  6. Step 6: Final answer
    x = 389,091.38

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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.