Home / 766,370.34-1,148,696.26-310,855.72

Finding the Fourth Proportional to 766,370.34, 1,148,696.26 and 310,855.72

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Solution

The fourth proportional to 766,370.34, 1,148,696.26 and 310,855.72 is: 465,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,370.34 : 1,148,696.26 = 310,855.72 : x
  2. Step 2: Convert to fraction form
    766,370.34/1,148,696.26 = 310,855.72/x
  3. Step 3: Cross multiply
    766,370.34x = 1,148,696.26 × 310,855.72
  4. Step 4: Simplify right side
    766,370.34x = 357,078,802,963.61
  5. Step 5: Solve for x
    x = 357,078,802,963.61/766,370.34
  6. Step 6: Final answer
    x = 465,935.05

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1.5x scale

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.