Home / 917,426.45-1,266,032.43-509,512.68

Finding the Fourth Proportional to 917,426.45, 1,266,032.43 and 509,512.68

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Solution

The fourth proportional to 917,426.45, 1,266,032.43 and 509,512.68 is: 703,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,426.45 : 1,266,032.43 = 509,512.68 : x
  2. Step 2: Convert to fraction form
    917,426.45/1,266,032.43 = 509,512.68/x
  3. Step 3: Cross multiply
    917,426.45x = 1,266,032.43 × 509,512.68
  4. Step 4: Simplify right side
    917,426.45x = 645,059,576,376.21
  5. Step 5: Solve for x
    x = 645,059,576,376.21/917,426.45
  6. Step 6: Final answer
    x = 703,118.57

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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.