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Finding the Fourth Proportional to 668,356.16, 1,000,191.48 and 479,024.96

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Solution

The fourth proportional to 668,356.16, 1,000,191.48 and 479,024.96 is: 716,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,356.16 : 1,000,191.48 = 479,024.96 : x
  2. Step 2: Convert to fraction form
    668,356.16/1,000,191.48 = 479,024.96/x
  3. Step 3: Cross multiply
    668,356.16x = 1,000,191.48 × 479,024.96
  4. Step 4: Simplify right side
    668,356.16x = 479,116,683,699.34
  5. Step 5: Solve for x
    x = 479,116,683,699.34/668,356.16
  6. Step 6: Final answer
    x = 716,858.33

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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.