Home / 830,713.31-1,146,385.39-448,740.09

Finding the Fourth Proportional to 830,713.31, 1,146,385.39 and 448,740.09

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Solution

The fourth proportional to 830,713.31, 1,146,385.39 and 448,740.09 is: 619,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,713.31 : 1,146,385.39 = 448,740.09 : x
  2. Step 2: Convert to fraction form
    830,713.31/1,146,385.39 = 448,740.09/x
  3. Step 3: Cross multiply
    830,713.31x = 1,146,385.39 × 448,740.09
  4. Step 4: Simplify right side
    830,713.31x = 514,429,081,961.44
  5. Step 5: Solve for x
    x = 514,429,081,961.44/830,713.31
  6. Step 6: Final answer
    x = 619,261.88

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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.