Home / 708,688.44-977,972.28-386,404.80

Finding the Fourth Proportional to 708,688.44, 977,972.28 and 386,404.80

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Solution

The fourth proportional to 708,688.44, 977,972.28 and 386,404.80 is: 533,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,688.44 : 977,972.28 = 386,404.80 : x
  2. Step 2: Convert to fraction form
    708,688.44/977,972.28 = 386,404.80/x
  3. Step 3: Cross multiply
    708,688.44x = 977,972.28 × 386,404.80
  4. Step 4: Simplify right side
    708,688.44x = 377,893,183,258.94
  5. Step 5: Solve for x
    x = 377,893,183,258.94/708,688.44
  6. Step 6: Final answer
    x = 533,228.94

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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.