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Finding the Fourth Proportional to 626,710.38, 864,870.84 and 340,230.48

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Solution

The fourth proportional to 626,710.38, 864,870.84 and 340,230.48 is: 469,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,710.38 : 864,870.84 = 340,230.48 : x
  2. Step 2: Convert to fraction form
    626,710.38/864,870.84 = 340,230.48/x
  3. Step 3: Cross multiply
    626,710.38x = 864,870.84 × 340,230.48
  4. Step 4: Simplify right side
    626,710.38x = 294,255,421,031.20
  5. Step 5: Solve for x
    x = 294,255,421,031.20/626,710.38
  6. Step 6: Final answer
    x = 469,523.77

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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.