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Finding the Fourth Proportional to 607,501.80, 911,835.90 and 308,320.20

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Solution

The fourth proportional to 607,501.80, 911,835.90 and 308,320.20 is: 462,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,501.80 : 911,835.90 = 308,320.20 : x
  2. Step 2: Convert to fraction form
    607,501.80/911,835.90 = 308,320.20/x
  3. Step 3: Cross multiply
    607,501.80x = 911,835.90 × 308,320.20
  4. Step 4: Simplify right side
    607,501.80x = 281,137,427,055.18
  5. Step 5: Solve for x
    x = 281,137,427,055.18/607,501.80
  6. Step 6: Final answer
    x = 462,776.29

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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.