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Finding the Fourth Proportional to 708,215.52, 977,324.64 and 385,927.68

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Solution

The fourth proportional to 708,215.52, 977,324.64 and 385,927.68 is: 532,573.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,215.52 : 977,324.64 = 385,927.68 : x
  2. Step 2: Convert to fraction form
    708,215.52/977,324.64 = 385,927.68/x
  3. Step 3: Cross multiply
    708,215.52x = 977,324.64 × 385,927.68
  4. Step 4: Simplify right side
    708,215.52x = 377,176,630,922.04
  5. Step 5: Solve for x
    x = 377,176,630,922.04/708,215.52
  6. Step 6: Final answer
    x = 532,573.24

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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.