Home / 708,380.17-977,196.34-449,814.73

Finding the Fourth Proportional to 708,380.17, 977,196.34 and 449,814.73

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Solution

The fourth proportional to 708,380.17, 977,196.34 and 449,814.73 is: 620,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,380.17 : 977,196.34 = 449,814.73 : x
  2. Step 2: Convert to fraction form
    708,380.17/977,196.34 = 449,814.73/x
  3. Step 3: Cross multiply
    708,380.17x = 977,196.34 × 449,814.73
  4. Step 4: Simplify right side
    708,380.17x = 439,557,307,834.09
  5. Step 5: Solve for x
    x = 439,557,307,834.09/708,380.17
  6. Step 6: Final answer
    x = 620,510.46

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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.