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Finding the Fourth Proportional to 502,308.28, 692,784.52 and 330,402.79

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Solution

The fourth proportional to 502,308.28, 692,784.52 and 330,402.79 is: 455,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,308.28 : 692,784.52 = 330,402.79 : x
  2. Step 2: Convert to fraction form
    502,308.28/692,784.52 = 330,402.79/x
  3. Step 3: Cross multiply
    502,308.28x = 692,784.52 × 330,402.79
  4. Step 4: Simplify right side
    502,308.28x = 228,897,935,718.84
  5. Step 5: Solve for x
    x = 228,897,935,718.84/502,308.28
  6. Step 6: Final answer
    x = 455,692.14

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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.