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Finding the Fourth Proportional to 565,512.04, 780,412.14 and 307,388.83

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Solution

The fourth proportional to 565,512.04, 780,412.14 and 307,388.83 is: 424,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,512.04 : 780,412.14 = 307,388.83 : x
  2. Step 2: Convert to fraction form
    565,512.04/780,412.14 = 307,388.83/x
  3. Step 3: Cross multiply
    565,512.04x = 780,412.14 × 307,388.83
  4. Step 4: Simplify right side
    565,512.04x = 239,889,974,632.40
  5. Step 5: Solve for x
    x = 239,889,974,632.40/565,512.04
  6. Step 6: Final answer
    x = 424,199.59

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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.