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Finding the Fourth Proportional to 626,561.96, 864,632.34 and 340,075.90

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Solution

The fourth proportional to 626,561.96, 864,632.34 and 340,075.90 is: 469,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,561.96 : 864,632.34 = 340,075.90 : x
  2. Step 2: Convert to fraction form
    626,561.96/864,632.34 = 340,075.90/x
  3. Step 3: Cross multiply
    626,561.96x = 864,632.34 × 340,075.90
  4. Step 4: Simplify right side
    626,561.96x = 294,040,621,194.61
  5. Step 5: Solve for x
    x = 294,040,621,194.61/626,561.96
  6. Step 6: Final answer
    x = 469,292.17

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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.