Home / 727,817.50-1,004,394.90-401,142.16

Finding the Fourth Proportional to 727,817.50, 1,004,394.90 and 401,142.16

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Solution

The fourth proportional to 727,817.50, 1,004,394.90 and 401,142.16 is: 553,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,817.50 : 1,004,394.90 = 401,142.16 : x
  2. Step 2: Convert to fraction form
    727,817.50/1,004,394.90 = 401,142.16/x
  3. Step 3: Cross multiply
    727,817.50x = 1,004,394.90 × 401,142.16
  4. Step 4: Simplify right side
    727,817.50x = 402,905,139,678.98
  5. Step 5: Solve for x
    x = 402,905,139,678.98/727,817.50
  6. Step 6: Final answer
    x = 553,579.90

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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.