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Finding the Fourth Proportional to 607,254.48, 909,722.58 and 340,207.20

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Solution

The fourth proportional to 607,254.48, 909,722.58 and 340,207.20 is: 509,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,254.48 : 909,722.58 = 340,207.20 : x
  2. Step 2: Convert to fraction form
    607,254.48/909,722.58 = 340,207.20/x
  3. Step 3: Cross multiply
    607,254.48x = 909,722.58 × 340,207.20
  4. Step 4: Simplify right side
    607,254.48x = 309,494,171,718.58
  5. Step 5: Solve for x
    x = 309,494,171,718.58/607,254.48
  6. Step 6: Final answer
    x = 509,661.41

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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.