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Finding the Fourth Proportional to 550,653.60, 759,913.66 and 308,953.65

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Solution

The fourth proportional to 550,653.60, 759,913.66 and 308,953.65 is: 426,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,653.60 : 759,913.66 = 308,953.65 : x
  2. Step 2: Convert to fraction form
    550,653.60/759,913.66 = 308,953.65/x
  3. Step 3: Cross multiply
    550,653.60x = 759,913.66 × 308,953.65
  4. Step 4: Simplify right side
    550,653.60x = 234,778,098,941.86
  5. Step 5: Solve for x
    x = 234,778,098,941.86/550,653.60
  6. Step 6: Final answer
    x = 426,362.60

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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.