Home / 689,629.18-951,692.98-383,718.50

Finding the Fourth Proportional to 689,629.18, 951,692.98 and 383,718.50

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Solution

The fourth proportional to 689,629.18, 951,692.98 and 383,718.50 is: 529,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,629.18 : 951,692.98 = 383,718.50 : x
  2. Step 2: Convert to fraction form
    689,629.18/951,692.98 = 383,718.50/x
  3. Step 3: Cross multiply
    689,629.18x = 951,692.98 × 383,718.50
  4. Step 4: Simplify right side
    689,629.18x = 365,182,202,746.13
  5. Step 5: Solve for x
    x = 365,182,202,746.13/689,629.18
  6. Step 6: Final answer
    x = 529,534.15

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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.