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Finding the Fourth Proportional to 449,477.18, 620,280.65 and 245,530.93

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Solution

The fourth proportional to 449,477.18, 620,280.65 and 245,530.93 is: 338,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,477.18 : 620,280.65 = 245,530.93 : x
  2. Step 2: Convert to fraction form
    449,477.18/620,280.65 = 245,530.93/x
  3. Step 3: Cross multiply
    449,477.18x = 620,280.65 × 245,530.93
  4. Step 4: Simplify right side
    449,477.18x = 152,298,084,855.51
  5. Step 5: Solve for x
    x = 152,298,084,855.51/449,477.18
  6. Step 6: Final answer
    x = 338,833.85

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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.