Home / 645,731.58-968,595.75-307,747.74

Finding the Fourth Proportional to 645,731.58, 968,595.75 and 307,747.74

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Solution

The fourth proportional to 645,731.58, 968,595.75 and 307,747.74 is: 461,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,731.58 : 968,595.75 = 307,747.74 : x
  2. Step 2: Convert to fraction form
    645,731.58/968,595.75 = 307,747.74/x
  3. Step 3: Cross multiply
    645,731.58x = 968,595.75 × 307,747.74
  4. Step 4: Simplify right side
    645,731.58x = 298,083,153,036.11
  5. Step 5: Solve for x
    x = 298,083,153,036.11/645,731.58
  6. Step 6: Final answer
    x = 461,620.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.