Home / 710,955.43-1,066,702.49-426,844.38

Finding the Fourth Proportional to 710,955.43, 1,066,702.49 and 426,844.38

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Solution

The fourth proportional to 710,955.43, 1,066,702.49 and 426,844.38 is: 640,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,955.43 : 1,066,702.49 = 426,844.38 : x
  2. Step 2: Convert to fraction form
    710,955.43/1,066,702.49 = 426,844.38/x
  3. Step 3: Cross multiply
    710,955.43x = 1,066,702.49 × 426,844.38
  4. Step 4: Simplify right side
    710,955.43x = 455,315,967,655.59
  5. Step 5: Solve for x
    x = 455,315,967,655.59/710,955.43
  6. Step 6: Final answer
    x = 640,428.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.