Home / 917,663.27-1,266,340.12-509,790.76

Finding the Fourth Proportional to 917,663.27, 1,266,340.12 and 509,790.76

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Solution

The fourth proportional to 917,663.27, 1,266,340.12 and 509,790.76 is: 703,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,663.27 : 1,266,340.12 = 509,790.76 : x
  2. Step 2: Convert to fraction form
    917,663.27/1,266,340.12 = 509,790.76/x
  3. Step 3: Cross multiply
    917,663.27x = 1,266,340.12 × 509,790.76
  4. Step 4: Simplify right side
    917,663.27x = 645,568,492,193.29
  5. Step 5: Solve for x
    x = 645,568,492,193.29/917,663.27
  6. Step 6: Final answer
    x = 703,491.70

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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.