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Finding the Fourth Proportional to 712,032.16, 982,595.82 and 385,337.56

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Solution

The fourth proportional to 712,032.16, 982,595.82 and 385,337.56 is: 531,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,032.16 : 982,595.82 = 385,337.56 : x
  2. Step 2: Convert to fraction form
    712,032.16/982,595.82 = 385,337.56/x
  3. Step 3: Cross multiply
    712,032.16x = 982,595.82 × 385,337.56
  4. Step 4: Simplify right side
    712,032.16x = 378,631,075,745.00
  5. Step 5: Solve for x
    x = 378,631,075,745.00/712,032.16
  6. Step 6: Final answer
    x = 531,761.20

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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.