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Finding the Fourth Proportional to 640,293.32, 960,477.55 and 240,937.54

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Solution

The fourth proportional to 640,293.32, 960,477.55 and 240,937.54 is: 361,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,293.32 : 960,477.55 = 240,937.54 : x
  2. Step 2: Convert to fraction form
    640,293.32/960,477.55 = 240,937.54/x
  3. Step 3: Cross multiply
    640,293.32x = 960,477.55 × 240,937.54
  4. Step 4: Simplify right side
    640,293.32x = 231,415,095,118.69
  5. Step 5: Solve for x
    x = 231,415,095,118.69/640,293.32
  6. Step 6: Final answer
    x = 361,420.44

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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.