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Finding the Fourth Proportional to 579,988.80, 869,734.53 and 313,677

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Solution

The fourth proportional to 579,988.80, 869,734.53 and 313,677 is: 470,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,988.80 : 869,734.53 = 313,677 : x
  2. Step 2: Convert to fraction form
    579,988.80/869,734.53 = 313,677/x
  3. Step 3: Cross multiply
    579,988.80x = 869,734.53 × 313,677
  4. Step 4: Simplify right side
    579,988.80x = 272,815,718,166.81
  5. Step 5: Solve for x
    x = 272,815,718,166.81/579,988.80
  6. Step 6: Final answer
    x = 470,381.01

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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.