Home / 988,749.21-1,364,510.66-559,003.71

Finding the Fourth Proportional to 988,749.21, 1,364,510.66 and 559,003.71

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Solution

The fourth proportional to 988,749.21, 1,364,510.66 and 559,003.71 is: 771,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,749.21 : 1,364,510.66 = 559,003.71 : x
  2. Step 2: Convert to fraction form
    988,749.21/1,364,510.66 = 559,003.71/x
  3. Step 3: Cross multiply
    988,749.21x = 1,364,510.66 × 559,003.71
  4. Step 4: Simplify right side
    988,749.21x = 762,766,518,479.53
  5. Step 5: Solve for x
    x = 762,766,518,479.53/988,749.21
  6. Step 6: Final answer
    x = 771,445.89

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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.