Home / 917,743.91-1,266,689.16-509,985.95

Finding the Fourth Proportional to 917,743.91, 1,266,689.16 and 509,985.95

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Solution

The fourth proportional to 917,743.91, 1,266,689.16 and 509,985.95 is: 703,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,743.91 : 1,266,689.16 = 509,985.95 : x
  2. Step 2: Convert to fraction form
    917,743.91/1,266,689.16 = 509,985.95/x
  3. Step 3: Cross multiply
    917,743.91x = 1,266,689.16 × 509,985.95
  4. Step 4: Simplify right side
    917,743.91x = 645,993,668,283.86
  5. Step 5: Solve for x
    x = 645,993,668,283.86/917,743.91
  6. Step 6: Final answer
    x = 703,893.17

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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.