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Finding the Fourth Proportional to 607,353.80, 911,009.10 and 274,929.80

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Solution

The fourth proportional to 607,353.80, 911,009.10 and 274,929.80 is: 412,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,353.80 : 911,009.10 = 274,929.80 : x
  2. Step 2: Convert to fraction form
    607,353.80/911,009.10 = 274,929.80/x
  3. Step 3: Cross multiply
    607,353.80x = 911,009.10 × 274,929.80
  4. Step 4: Simplify right side
    607,353.80x = 250,463,549,661.18
  5. Step 5: Solve for x
    x = 250,463,549,661.18/607,353.80
  6. Step 6: Final answer
    x = 412,384.92

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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.