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Finding the Fourth Proportional to 449,340.59, 620,094.95 and 245,397.51

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Solution

The fourth proportional to 449,340.59, 620,094.95 and 245,397.51 is: 338,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,340.59 : 620,094.95 = 245,397.51 : x
  2. Step 2: Convert to fraction form
    449,340.59/620,094.95 = 245,397.51/x
  3. Step 3: Cross multiply
    449,340.59x = 620,094.95 × 245,397.51
  4. Step 4: Simplify right side
    449,340.59x = 152,169,757,307.07
  5. Step 5: Solve for x
    x = 152,169,757,307.07/449,340.59
  6. Step 6: Final answer
    x = 338,651.26

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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.