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Finding the Fourth Proportional to 554,477.95, 765,184.15 and 306,127.90

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Solution

The fourth proportional to 554,477.95, 765,184.15 and 306,127.90 is: 422,459.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,477.95 : 765,184.15 = 306,127.90 : x
  2. Step 2: Convert to fraction form
    554,477.95/765,184.15 = 306,127.90/x
  3. Step 3: Cross multiply
    554,477.95x = 765,184.15 × 306,127.90
  4. Step 4: Simplify right side
    554,477.95x = 234,244,216,952.79
  5. Step 5: Solve for x
    x = 234,244,216,952.79/554,477.95
  6. Step 6: Final answer
    x = 422,459.03

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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.