Home / 899,688.34-1,241,603.31-491,817.88

Finding the Fourth Proportional to 899,688.34, 1,241,603.31 and 491,817.88

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Solution

The fourth proportional to 899,688.34, 1,241,603.31 and 491,817.88 is: 678,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,688.34 : 1,241,603.31 = 491,817.88 : x
  2. Step 2: Convert to fraction form
    899,688.34/1,241,603.31 = 491,817.88/x
  3. Step 3: Cross multiply
    899,688.34x = 1,241,603.31 × 491,817.88
  4. Step 4: Simplify right side
    899,688.34x = 610,642,707,725.18
  5. Step 5: Solve for x
    x = 610,642,707,725.18/899,688.34
  6. Step 6: Final answer
    x = 678,726.93

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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.