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Finding the Fourth Proportional to 626,726.84, 864,825.90 and 358,449.08

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Solution

The fourth proportional to 626,726.84, 864,825.90 and 358,449.08 is: 494,627.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,726.84 : 864,825.90 = 358,449.08 : x
  2. Step 2: Convert to fraction form
    626,726.84/864,825.90 = 358,449.08/x
  3. Step 3: Cross multiply
    626,726.84x = 864,825.90 × 358,449.08
  4. Step 4: Simplify right side
    626,726.84x = 309,996,048,215.17
  5. Step 5: Solve for x
    x = 309,996,048,215.17/626,726.84
  6. Step 6: Final answer
    x = 494,627.05

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1.5x scale

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.