Home / 768,761.40-1,153,281.83-384,710.84

Finding the Fourth Proportional to 768,761.40, 1,153,281.83 and 384,710.84

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Solution

The fourth proportional to 768,761.40, 1,153,281.83 and 384,710.84 is: 577,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,761.40 : 1,153,281.83 = 384,710.84 : x
  2. Step 2: Convert to fraction form
    768,761.40/1,153,281.83 = 384,710.84/x
  3. Step 3: Cross multiply
    768,761.40x = 1,153,281.83 × 384,710.84
  4. Step 4: Simplify right side
    768,761.40x = 443,680,013,886.07
  5. Step 5: Solve for x
    x = 443,680,013,886.07/768,761.40
  6. Step 6: Final answer
    x = 577,136.18

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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.