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Finding the Fourth Proportional to 566,884.31, 782,300.32 and 312,235.51

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Solution

The fourth proportional to 566,884.31, 782,300.32 and 312,235.51 is: 430,884.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,884.31 : 782,300.32 = 312,235.51 : x
  2. Step 2: Convert to fraction form
    566,884.31/782,300.32 = 312,235.51/x
  3. Step 3: Cross multiply
    566,884.31x = 782,300.32 × 312,235.51
  4. Step 4: Simplify right side
    566,884.31x = 244,261,939,388.36
  5. Step 5: Solve for x
    x = 244,261,939,388.36/566,884.31
  6. Step 6: Final answer
    x = 430,884.99

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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.