Home / 997,715.40-1,496,427.30-287,669.40

Finding the Fourth Proportional to 997,715.40, 1,496,427.30 and 287,669.40

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Solution

The fourth proportional to 997,715.40, 1,496,427.30 and 287,669.40 is: 431,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,715.40 : 1,496,427.30 = 287,669.40 : x
  2. Step 2: Convert to fraction form
    997,715.40/1,496,427.30 = 287,669.40/x
  3. Step 3: Cross multiply
    997,715.40x = 1,496,427.30 × 287,669.40
  4. Step 4: Simplify right side
    997,715.40x = 430,476,343,534.62
  5. Step 5: Solve for x
    x = 430,476,343,534.62/997,715.40
  6. Step 6: Final answer
    x = 431,462.06

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Double scale
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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.