Home / 689,981.79-952,185.65-384,061.50

Finding the Fourth Proportional to 689,981.79, 952,185.65 and 384,061.50

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Solution

The fourth proportional to 689,981.79, 952,185.65 and 384,061.50 is: 530,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,981.79 : 952,185.65 = 384,061.50 : x
  2. Step 2: Convert to fraction form
    689,981.79/952,185.65 = 384,061.50/x
  3. Step 3: Cross multiply
    689,981.79x = 952,185.65 × 384,061.50
  4. Step 4: Simplify right side
    689,981.79x = 365,697,847,097.17
  5. Step 5: Solve for x
    x = 365,697,847,097.17/689,981.79
  6. Step 6: Final answer
    x = 530,010.87

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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.