Home / 830,660.41-1,146,311.40-448,687.20

Finding the Fourth Proportional to 830,660.41, 1,146,311.40 and 448,687.20

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Solution

The fourth proportional to 830,660.41, 1,146,311.40 and 448,687.20 is: 619,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,660.41 : 1,146,311.40 = 448,687.20 : x
  2. Step 2: Convert to fraction form
    830,660.41/1,146,311.40 = 448,687.20/x
  3. Step 3: Cross multiply
    830,660.41x = 1,146,311.40 × 448,687.20
  4. Step 4: Simplify right side
    830,660.41x = 514,335,252,394.08
  5. Step 5: Solve for x
    x = 514,335,252,394.08/830,660.41
  6. Step 6: Final answer
    x = 619,188.35

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Double scale
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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.