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Finding the Fourth Proportional to 531,937.28, 734,117.28 and 302,566.40

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Solution

The fourth proportional to 531,937.28, 734,117.28 and 302,566.40 is: 417,566.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,937.28 : 734,117.28 = 302,566.40 : x
  2. Step 2: Convert to fraction form
    531,937.28/734,117.28 = 302,566.40/x
  3. Step 3: Cross multiply
    531,937.28x = 734,117.28 × 302,566.40
  4. Step 4: Simplify right side
    531,937.28x = 222,119,222,587.39
  5. Step 5: Solve for x
    x = 222,119,222,587.39/531,937.28
  6. Step 6: Final answer
    x = 417,566.56

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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.