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Finding the Fourth Proportional to 520,869.36, 718,814.88 and 294,510

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Solution

The fourth proportional to 520,869.36, 718,814.88 and 294,510 is: 406,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,869.36 : 718,814.88 = 294,510 : x
  2. Step 2: Convert to fraction form
    520,869.36/718,814.88 = 294,510/x
  3. Step 3: Cross multiply
    520,869.36x = 718,814.88 × 294,510
  4. Step 4: Simplify right side
    520,869.36x = 211,698,170,308.80
  5. Step 5: Solve for x
    x = 211,698,170,308.80/520,869.36
  6. Step 6: Final answer
    x = 406,432.37

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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.