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Finding the Fourth Proportional to 440,401.34, 607,725.06 and 259,078.20

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Solution

The fourth proportional to 440,401.34, 607,725.06 and 259,078.20 is: 357,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,401.34 : 607,725.06 = 259,078.20 : x
  2. Step 2: Convert to fraction form
    440,401.34/607,725.06 = 259,078.20/x
  3. Step 3: Cross multiply
    440,401.34x = 607,725.06 × 259,078.20
  4. Step 4: Simplify right side
    440,401.34x = 157,448,314,639.69
  5. Step 5: Solve for x
    x = 157,448,314,639.69/440,401.34
  6. Step 6: Final answer
    x = 357,510.98

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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.