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Finding the Fourth Proportional to 626,597.40, 864,708.80 and 340,117.44

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Solution

The fourth proportional to 626,597.40, 864,708.80 and 340,117.44 is: 469,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,597.40 : 864,708.80 = 340,117.44 : x
  2. Step 2: Convert to fraction form
    626,597.40/864,708.80 = 340,117.44/x
  3. Step 3: Cross multiply
    626,597.40x = 864,708.80 × 340,117.44
  4. Step 4: Simplify right side
    626,597.40x = 294,102,543,401.47
  5. Step 5: Solve for x
    x = 294,102,543,401.47/626,597.40
  6. Step 6: Final answer
    x = 469,364.45

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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.