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Finding the Fourth Proportional to 563,900.16, 778,192.24 and 309,249.12

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Solution

The fourth proportional to 563,900.16, 778,192.24 and 309,249.12 is: 426,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,900.16 : 778,192.24 = 309,249.12 : x
  2. Step 2: Convert to fraction form
    563,900.16/778,192.24 = 309,249.12/x
  3. Step 3: Cross multiply
    563,900.16x = 778,192.24 × 309,249.12
  4. Step 4: Simplify right side
    563,900.16x = 240,655,265,410.83
  5. Step 5: Solve for x
    x = 240,655,265,410.83/563,900.16
  6. Step 6: Final answer
    x = 426,769.28

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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.