Home / 810,702.36-1,118,768.90-448,126.38

Finding the Fourth Proportional to 810,702.36, 1,118,768.90 and 448,126.38

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Solution

The fourth proportional to 810,702.36, 1,118,768.90 and 448,126.38 is: 618,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,702.36 : 1,118,768.90 = 448,126.38 : x
  2. Step 2: Convert to fraction form
    810,702.36/1,118,768.90 = 448,126.38/x
  3. Step 3: Cross multiply
    810,702.36x = 1,118,768.90 × 448,126.38
  4. Step 4: Simplify right side
    810,702.36x = 501,349,854,972.95
  5. Step 5: Solve for x
    x = 501,349,854,972.95/810,702.36
  6. Step 6: Final answer
    x = 618,414.20

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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.