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Finding the Fourth Proportional to 554,662.08, 830,360.16 and 343,621.44

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Solution

The fourth proportional to 554,662.08, 830,360.16 and 343,621.44 is: 514,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,662.08 : 830,360.16 = 343,621.44 : x
  2. Step 2: Convert to fraction form
    554,662.08/830,360.16 = 343,621.44/x
  3. Step 3: Cross multiply
    554,662.08x = 830,360.16 × 343,621.44
  4. Step 4: Simplify right side
    554,662.08x = 285,329,553,897.83
  5. Step 5: Solve for x
    x = 285,329,553,897.83/554,662.08
  6. Step 6: Final answer
    x = 514,420.52

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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.