Home / 579,460.95-869,441.18-313,408.76

Finding the Fourth Proportional to 579,460.95, 869,441.18 and 313,408.76

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Solution

The fourth proportional to 579,460.95, 869,441.18 and 313,408.76 is: 470,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,460.95 : 869,441.18 = 313,408.76 : x
  2. Step 2: Convert to fraction form
    579,460.95/869,441.18 = 313,408.76/x
  3. Step 3: Cross multiply
    579,460.95x = 869,441.18 × 313,408.76
  4. Step 4: Simplify right side
    579,460.95x = 272,490,476,202.49
  5. Step 5: Solve for x
    x = 272,490,476,202.49/579,460.95
  6. Step 6: Final answer
    x = 470,248.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.