Home / 986,285.10-1,479,427.65-355,116.90

Finding the Fourth Proportional to 986,285.10, 1,479,427.65 and 355,116.90

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Solution

The fourth proportional to 986,285.10, 1,479,427.65 and 355,116.90 is: 532,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,285.10 : 1,479,427.65 = 355,116.90 : x
  2. Step 2: Convert to fraction form
    986,285.10/1,479,427.65 = 355,116.90/x
  3. Step 3: Cross multiply
    986,285.10x = 1,479,427.65 × 355,116.90
  4. Step 4: Simplify right side
    986,285.10x = 525,369,760,842.29
  5. Step 5: Solve for x
    x = 525,369,760,842.29/986,285.10
  6. Step 6: Final answer
    x = 532,675.35

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Double scale
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Similar ratio
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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.