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Finding the Fourth Proportional to 564,335.88, 778,793.04 and 309,710.76

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Solution

The fourth proportional to 564,335.88, 778,793.04 and 309,710.76 is: 427,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,335.88 : 778,793.04 = 309,710.76 : x
  2. Step 2: Convert to fraction form
    564,335.88/778,793.04 = 309,710.76/x
  3. Step 3: Cross multiply
    564,335.88x = 778,793.04 × 309,710.76
  4. Step 4: Simplify right side
    564,335.88x = 241,200,584,301.11
  5. Step 5: Solve for x
    x = 241,200,584,301.11/564,335.88
  6. Step 6: Final answer
    x = 427,406.08

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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.