Home / 727,635.76-1,004,167.60-405,345.76

Finding the Fourth Proportional to 727,635.76, 1,004,167.60 and 405,345.76

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Solution

The fourth proportional to 727,635.76, 1,004,167.60 and 405,345.76 is: 559,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,635.76 : 1,004,167.60 = 405,345.76 : x
  2. Step 2: Convert to fraction form
    727,635.76/1,004,167.60 = 405,345.76/x
  3. Step 3: Cross multiply
    727,635.76x = 1,004,167.60 × 405,345.76
  4. Step 4: Simplify right side
    727,635.76x = 407,035,078,989.38
  5. Step 5: Solve for x
    x = 407,035,078,989.38/727,635.76
  6. Step 6: Final answer
    x = 559,394.00

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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.