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Finding the Fourth Proportional to 669,639.79, 924,109.64 and 363,722.14

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Solution

The fourth proportional to 669,639.79, 924,109.64 and 363,722.14 is: 501,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,639.79 : 924,109.64 = 363,722.14 : x
  2. Step 2: Convert to fraction form
    669,639.79/924,109.64 = 363,722.14/x
  3. Step 3: Cross multiply
    669,639.79x = 924,109.64 × 363,722.14
  4. Step 4: Simplify right side
    669,639.79x = 336,119,134,036.82
  5. Step 5: Solve for x
    x = 336,119,134,036.82/669,639.79
  6. Step 6: Final answer
    x = 501,940.21

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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.