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Finding the Fourth Proportional to 607,686.90, 838,437.30 and 349,550.34

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Solution

The fourth proportional to 607,686.90, 838,437.30 and 349,550.34 is: 482,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,686.90 : 838,437.30 = 349,550.34 : x
  2. Step 2: Convert to fraction form
    607,686.90/838,437.30 = 349,550.34/x
  3. Step 3: Cross multiply
    607,686.90x = 838,437.30 × 349,550.34
  4. Step 4: Simplify right side
    607,686.90x = 293,076,043,283.68
  5. Step 5: Solve for x
    x = 293,076,043,283.68/607,686.90
  6. Step 6: Final answer
    x = 482,281.32

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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.