Home / 915,784.08-1,263,857.70-508,017.40

Finding the Fourth Proportional to 915,784.08, 1,263,857.70 and 508,017.40

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Solution

The fourth proportional to 915,784.08, 1,263,857.70 and 508,017.40 is: 701,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,784.08 : 1,263,857.70 = 508,017.40 : x
  2. Step 2: Convert to fraction form
    915,784.08/1,263,857.70 = 508,017.40/x
  3. Step 3: Cross multiply
    915,784.08x = 1,263,857.70 × 508,017.40
  4. Step 4: Simplify right side
    915,784.08x = 642,061,702,723.98
  5. Step 5: Solve for x
    x = 642,061,702,723.98/915,784.08
  6. Step 6: Final answer
    x = 701,105.99

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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.