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Finding the Fourth Proportional to 669,639.94, 924,109.95 and 363,719.32

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Solution

The fourth proportional to 669,639.94, 924,109.95 and 363,719.32 is: 501,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,639.94 : 924,109.95 = 363,719.32 : x
  2. Step 2: Convert to fraction form
    669,639.94/924,109.95 = 363,719.32/x
  3. Step 3: Cross multiply
    669,639.94x = 924,109.95 × 363,719.32
  4. Step 4: Simplify right side
    669,639.94x = 336,116,642,619.23
  5. Step 5: Solve for x
    x = 336,116,642,619.23/669,639.94
  6. Step 6: Final answer
    x = 501,936.37

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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.