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Finding the Fourth Proportional to 562,064.70, 775,667.85 and 307,415.88

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Solution

The fourth proportional to 562,064.70, 775,667.85 and 307,415.88 is: 424,244.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,064.70 : 775,667.85 = 307,415.88 : x
  2. Step 2: Convert to fraction form
    562,064.70/775,667.85 = 307,415.88/x
  3. Step 3: Cross multiply
    562,064.70x = 775,667.85 × 307,415.88
  4. Step 4: Simplify right side
    562,064.70x = 238,452,615,724.21
  5. Step 5: Solve for x
    x = 238,452,615,724.21/562,064.70
  6. Step 6: Final answer
    x = 424,244.07

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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.