Home / 920,853.18-1,270,758.24-512,954.46

Finding the Fourth Proportional to 920,853.18, 1,270,758.24 and 512,954.46

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Solution

The fourth proportional to 920,853.18, 1,270,758.24 and 512,954.46 is: 707,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,853.18 : 1,270,758.24 = 512,954.46 : x
  2. Step 2: Convert to fraction form
    920,853.18/1,270,758.24 = 512,954.46/x
  3. Step 3: Cross multiply
    920,853.18x = 1,270,758.24 × 512,954.46
  4. Step 4: Simplify right side
    920,853.18x = 651,841,106,789.75
  5. Step 5: Solve for x
    x = 651,841,106,789.75/920,853.18
  6. Step 6: Final answer
    x = 707,866.49

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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.