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Finding the Fourth Proportional to 626,693.68, 864,746.04 and 358,369.84

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Solution

The fourth proportional to 626,693.68, 864,746.04 and 358,369.84 is: 494,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,693.68 : 864,746.04 = 358,369.84 : x
  2. Step 2: Convert to fraction form
    626,693.68/864,746.04 = 358,369.84/x
  3. Step 3: Cross multiply
    626,693.68x = 864,746.04 × 358,369.84
  4. Step 4: Simplify right side
    626,693.68x = 309,898,899,995.43
  5. Step 5: Solve for x
    x = 309,898,899,995.43/626,693.68
  6. Step 6: Final answer
    x = 494,498.21

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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.