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Finding the Fourth Proportional to 626,554.59, 864,646.99 and 340,074.67

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Solution

The fourth proportional to 626,554.59, 864,646.99 and 340,074.67 is: 469,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,554.59 : 864,646.99 = 340,074.67 : x
  2. Step 2: Convert to fraction form
    626,554.59/864,646.99 = 340,074.67/x
  3. Step 3: Cross multiply
    626,554.59x = 864,646.99 × 340,074.67
  4. Step 4: Simplify right side
    626,554.59x = 294,044,539,790.74
  5. Step 5: Solve for x
    x = 294,044,539,790.74/626,554.59
  6. Step 6: Final answer
    x = 469,303.94

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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.