Home / 739,588.79-1,108,542.31-312,858.32

Finding the Fourth Proportional to 739,588.79, 1,108,542.31 and 312,858.32

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Solution

The fourth proportional to 739,588.79, 1,108,542.31 and 312,858.32 is: 468,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,588.79 : 1,108,542.31 = 312,858.32 : x
  2. Step 2: Convert to fraction form
    739,588.79/1,108,542.31 = 312,858.32/x
  3. Step 3: Cross multiply
    739,588.79x = 1,108,542.31 × 312,858.32
  4. Step 4: Simplify right side
    739,588.79x = 346,816,678,430.66
  5. Step 5: Solve for x
    x = 346,816,678,430.66/739,588.79
  6. Step 6: Final answer
    x = 468,931.77

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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.