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Finding the Fourth Proportional to 556,034.40, 835,801.20 and 545,536.80

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Solution

The fourth proportional to 556,034.40, 835,801.20 and 545,536.80 is: 820,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,034.40 : 835,801.20 = 545,536.80 : x
  2. Step 2: Convert to fraction form
    556,034.40/835,801.20 = 545,536.80/x
  3. Step 3: Cross multiply
    556,034.40x = 835,801.20 × 545,536.80
  4. Step 4: Simplify right side
    556,034.40x = 455,960,312,084.16
  5. Step 5: Solve for x
    x = 455,960,312,084.16/556,034.40
  6. Step 6: Final answer
    x = 820,021.77

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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.