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Finding the Fourth Proportional to 707,925.79, 977,299.72 and 479,689.25

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Solution

The fourth proportional to 707,925.79, 977,299.72 and 479,689.25 is: 662,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,925.79 : 977,299.72 = 479,689.25 : x
  2. Step 2: Convert to fraction form
    707,925.79/977,299.72 = 479,689.25/x
  3. Step 3: Cross multiply
    707,925.79x = 977,299.72 × 479,689.25
  4. Step 4: Simplify right side
    707,925.79x = 468,800,169,712.01
  5. Step 5: Solve for x
    x = 468,800,169,712.01/707,925.79
  6. Step 6: Final answer
    x = 662,216.54

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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.