Home / 917,744.64-1,266,690.18-509,986.71

Finding the Fourth Proportional to 917,744.64, 1,266,690.18 and 509,986.71

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Solution

The fourth proportional to 917,744.64, 1,266,690.18 and 509,986.71 is: 703,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,744.64 : 1,266,690.18 = 509,986.71 : x
  2. Step 2: Convert to fraction form
    917,744.64/1,266,690.18 = 509,986.71/x
  3. Step 3: Cross multiply
    917,744.64x = 1,266,690.18 × 509,986.71
  4. Step 4: Simplify right side
    917,744.64x = 645,995,157,487.51
  5. Step 5: Solve for x
    x = 645,995,157,487.51/917,744.64
  6. Step 6: Final answer
    x = 703,894.23

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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.