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Finding the Fourth Proportional to 606,465.40, 909,698.04 and 340,412.80

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Solution

The fourth proportional to 606,465.40, 909,698.04 and 340,412.80 is: 510,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,465.40 : 909,698.04 = 340,412.80 : x
  2. Step 2: Convert to fraction form
    606,465.40/909,698.04 = 340,412.80/x
  3. Step 3: Cross multiply
    606,465.40x = 909,698.04 × 340,412.80
  4. Step 4: Simplify right side
    606,465.40x = 309,672,856,950.91
  5. Step 5: Solve for x
    x = 309,672,856,950.91/606,465.40
  6. Step 6: Final answer
    x = 510,619.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.