Home / 899,761.40-1,349,644.67-260,117.21

Finding the Fourth Proportional to 899,761.40, 1,349,644.67 and 260,117.21

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Solution

The fourth proportional to 899,761.40, 1,349,644.67 and 260,117.21 is: 390,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,761.40 : 1,349,644.67 = 260,117.21 : x
  2. Step 2: Convert to fraction form
    899,761.40/1,349,644.67 = 260,117.21/x
  3. Step 3: Cross multiply
    899,761.40x = 1,349,644.67 × 260,117.21
  4. Step 4: Simplify right side
    899,761.40x = 351,065,806,837.02
  5. Step 5: Solve for x
    x = 351,065,806,837.02/899,761.40
  6. Step 6: Final answer
    x = 390,176.56

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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.