Home / 815,603.72-1,125,518.10-453,013.16

Finding the Fourth Proportional to 815,603.72, 1,125,518.10 and 453,013.16

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Solution

The fourth proportional to 815,603.72, 1,125,518.10 and 453,013.16 is: 625,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,603.72 : 1,125,518.10 = 453,013.16 : x
  2. Step 2: Convert to fraction form
    815,603.72/1,125,518.10 = 453,013.16/x
  3. Step 3: Cross multiply
    815,603.72x = 1,125,518.10 × 453,013.16
  4. Step 4: Simplify right side
    815,603.72x = 509,874,511,118.20
  5. Step 5: Solve for x
    x = 509,874,511,118.20/815,603.72
  6. Step 6: Final answer
    x = 625,149.81

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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.