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Finding the Fourth Proportional to 573,688.30, 791,676.03 and 312,036.88

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Solution

The fourth proportional to 573,688.30, 791,676.03 and 312,036.88 is: 430,603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,688.30 : 791,676.03 = 312,036.88 : x
  2. Step 2: Convert to fraction form
    573,688.30/791,676.03 = 312,036.88/x
  3. Step 3: Cross multiply
    573,688.30x = 791,676.03 × 312,036.88
  4. Step 4: Simplify right side
    573,688.30x = 247,032,118,371.99
  5. Step 5: Solve for x
    x = 247,032,118,371.99/573,688.30
  6. Step 6: Final answer
    x = 430,603.38

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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.