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Finding the Fourth Proportional to 708,885.97, 977,709.72 and 454,260.85

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Solution

The fourth proportional to 708,885.97, 977,709.72 and 454,260.85 is: 626,525.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,885.97 : 977,709.72 = 454,260.85 : x
  2. Step 2: Convert to fraction form
    708,885.97/977,709.72 = 454,260.85/x
  3. Step 3: Cross multiply
    708,885.97x = 977,709.72 × 454,260.85
  4. Step 4: Simplify right side
    708,885.97x = 444,135,248,460.46
  5. Step 5: Solve for x
    x = 444,135,248,460.46/708,885.97
  6. Step 6: Final answer
    x = 626,525.66

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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.