Home / 510,956.17-705,085.77-306,885.83

Finding the Fourth Proportional to 510,956.17, 705,085.77 and 306,885.83

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Solution

The fourth proportional to 510,956.17, 705,085.77 and 306,885.83 is: 423,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,956.17 : 705,085.77 = 306,885.83 : x
  2. Step 2: Convert to fraction form
    510,956.17/705,085.77 = 306,885.83/x
  3. Step 3: Cross multiply
    510,956.17x = 705,085.77 × 306,885.83
  4. Step 4: Simplify right side
    510,956.17x = 216,380,831,747.64
  5. Step 5: Solve for x
    x = 216,380,831,747.64/510,956.17
  6. Step 6: Final answer
    x = 423,482.18

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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.