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Finding the Fourth Proportional to 626,210.48, 864,170.77 and 339,730.49

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Solution

The fourth proportional to 626,210.48, 864,170.77 and 339,730.49 is: 468,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,210.48 : 864,170.77 = 339,730.49 : x
  2. Step 2: Convert to fraction form
    626,210.48/864,170.77 = 339,730.49/x
  3. Step 3: Cross multiply
    626,210.48x = 864,170.77 × 339,730.49
  4. Step 4: Simplify right side
    626,210.48x = 293,585,159,135.78
  5. Step 5: Solve for x
    x = 293,585,159,135.78/626,210.48
  6. Step 6: Final answer
    x = 468,828.24

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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.